diff --git a/locale/zh_CN/LC_MESSAGES/0-overview/2-learning_path.po b/locale/zh_CN/LC_MESSAGES/0-overview/2-learning_path.po
index 2d4ea65..ab2147e 100644
--- a/locale/zh_CN/LC_MESSAGES/0-overview/2-learning_path.po
+++ b/locale/zh_CN/LC_MESSAGES/0-overview/2-learning_path.po
@@ -1627,6 +1627,77 @@ msgstr ""
"能在浏览器里打开,Isaac Sim 已安装,`ISAACSIM_DIR` 已设置,并且已经跑过 FaSim 的 `./init.sh` 和 "
"`./run.sh`。"
+
+#: ../../source/0-overview/2-learning_path.md:89
+#: d138244bcd754d9aa7c3ae7c18d8b62b
+msgid ""
+"This clip shows operating the ARX Lift 2S (方舟无限 Lift 2S, a dual-arm mobile"
+" manipulator) in RViz: drag the left and right end-effector interactive "
+"markers, then use the right-click menu to send the end-effector pose; both"
+" arms follow the targets. The clip has no terminal or launch commands."
+msgstr ""
+"这段视频是在 RViz 中操作方舟无限 Lift "
+"2S(双臂移动操作臂):拖动左右臂末端交互标记,再用右键菜单发送末端位置,双臂跟随目标。视频里没有终端和启动命令。"
+
+#: ../../source/0-overview/2-learning_path.md:153
+#: ea68f9803dc64d3385c302966562df00
+msgid ""
+"Start Viser the way you did on Day 3, after the Isaac / ROS 2 stack is up,"
+" so you can view and control the robot in the browser: [Start "
+"Viser](../2-how_to/3-programming/5-python_interface.md#start-viser)."
+msgstr ""
+"Isaac / ROS 2 运控起来之后,按第 3 天的方式启动 Viser,就可以在浏览器里查看和控制机器人:[启动 "
+"Viser](../2-how_to/3-programming/5-python_interface.md#start-viser)。"
+
+#: ../../source/0-overview/2-learning_path.md:155
+#: f61bd675ac664568a44750b66d7ea79a
+msgid ""
+"This clip is a G1-D demonstration of full-body control in Isaac Sim. On "
+"the Viser web control interface, drag the dual-arm end-effector targets "
+"and move the chassis in rotation and translation; G1-D in Isaac Sim moves "
+"with it. Start Viser as in [Start "
+"Viser](../2-how_to/3-programming/5-python_interface.md#start-viser) after "
+"the stack is up."
+msgstr ""
+"这段视频是 G1-D 在 Isaac Sim 中做全身控制的演示。在 Viser 网页控制界面上拖动双臂末端目标,并控制底盘旋转和平移;Isaac "
+"Sim 中的 G1-D 同步运动。运控起来之后,按 [启动 "
+"Viser](../2-how_to/3-programming/5-python_interface.md#start-viser) 启动 "
+"Viser。"
+
+#: ../../source/0-overview/2-learning_path.md:163
+#: ea68f9803dc64d3385c302966562df00
+msgid ""
+"The same clip, and the rest of the Isaac Sim steps, are on [G1-D full-body"
+" control and chassis "
+"motion](../2-how_to/2-simulation/4-isaac_sim.md#g1-d-full-body-control-"
+"and-chassis-motion)."
+msgstr ""
+"同一段视频,以及其余 Isaac Sim 步骤,见 [G1-D "
+"全身控制与底盘运动](../2-how_to/2-simulation/4-isaac_sim.md#g1-d-full-body-control-"
+"and-chassis-motion)。"
+
+#: ../../source/0-overview/2-learning_path.md:91
+#: f2e3565622f943bfbe423866afa2ac35
+msgid ""
+""
+msgstr ""
+""
+
+#: ../../source/0-overview/2-learning_path.md:157
+#: f2e3565622f943bfbe423866afa2ac35
+msgid ""
+""
+msgstr ""
+""
+
#~ msgid "Day 6+"
#~ msgstr ""
diff --git a/source/0-overview/2-learning_path.md b/source/0-overview/2-learning_path.md
index 936712c..d842875 100644
--- a/source/0-overview/2-learning_path.md
+++ b/source/0-overview/2-learning_path.md
@@ -86,6 +86,14 @@ ros2 launch ocs2_arm_controller full_body.launch.py robot:=arx_lift2s
`arx_lift2s` is **ARX Lift 2S** (方舟无限), the full-body mobile manipulator (arms, lift, and chassis). It is not **Acone** / **AC One** (`arx_acone`, dual-arm). `full_body.launch.py` starts `ocs2_wbc_controller`, which ships in the `ros-jazzy-arms-ros2-control` deb.
+This clip shows operating the ARX Lift 2S (方舟无限 Lift 2S, a dual-arm mobile manipulator) in RViz: drag the left and right end-effector interactive markers, then use the right-click menu to send the end-effector pose; both arms follow the targets. The clip has no terminal or launch commands.
+
+```{raw} html
+
+```
+
### FiveAges W2 with xhand1
W2 is a FiveAges wheeled-arm robot. Its URDF is public ([fa-w2-description](https://github.com/fiveages-sim/fa-w2-description)); the usual workspace is [fa-deploy-ws](https://github.com/fiveages-sim/fa-deploy-ws) (default branch `fa-w2`). See [FiveAges robot descriptions](../4-reference/descriptions/4-fiveages_umbrella.md) and [fa-deploy-ws Setup](../1-getting_started/4-fa_deploy_ws.md).
@@ -142,7 +150,17 @@ Do not copy the rest of the Python API here. Full Viser UI: [ros2-viser](../4-re
**FaSim** pairs NVIDIA Isaac Sim with the same ROS 2 运控 stack as the real robot. Follow [Isaac Sim](../2-how_to/2-simulation/4-isaac_sim.md): clone [FaSim-Isaac](https://github.com/fiveages-sim/FaSim-Isaac), run `./init.sh`, then `./run.sh`, and connect with **one** of the two paths on that page (`hardware:=isaac`, or Play on a `ROS2ControlLaunch` payload). Default Isaac path is `ISAACSIM_DIR` (`~/isaacsim`); override in `config/fa_sim.local.conf`.
-Start Viser the way you did on Day 3, after the Isaac / ROS 2 stack is up, so you can view and control the robot in the browser: [Start Viser](../2-how_to/3-programming/5-python_interface.md#start-viser). A G1-D demonstration of full-body control and chassis motion is on that How-To page: [G1-D full-body control and chassis motion](../2-how_to/2-simulation/4-isaac_sim.md#g1-d-full-body-control-and-chassis-motion).
+Start Viser the way you did on Day 3, after the Isaac / ROS 2 stack is up, so you can view and control the robot in the browser: [Start Viser](../2-how_to/3-programming/5-python_interface.md#start-viser).
+
+This clip is a G1-D demonstration of full-body control in Isaac Sim. On the Viser web control interface, drag the dual-arm end-effector targets and move the chassis in rotation and translation; G1-D in Isaac Sim moves with it. Start Viser as in [Start Viser](../2-how_to/3-programming/5-python_interface.md#start-viser) after the stack is up.
+
+```{raw} html
+
+```
+
+The same clip, and the rest of the Isaac Sim steps, are on [G1-D full-body control and chassis motion](../2-how_to/2-simulation/4-isaac_sim.md#g1-d-full-body-control-and-chassis-motion).
What the two connections and the Kit extensions do: [FaSim-Isaac](../4-reference/simulation/2-fasim_isaac.md). Assets: [robot_usds](../4-reference/simulation/3-robot_usds.md), [Environment assets](../4-reference/simulation/5-env_assets.md).
diff --git a/source/_static/videos/day2-arx-lift2s.mp4 b/source/_static/videos/day2-arx-lift2s.mp4
new file mode 100644
index 0000000..b068eba
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