diff --git a/README.md b/README.md
index 47ea090..b4c67ab 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 Simulation verification and physical deployment of robot reinforcement learning algorithms, suitable for quadruped robots, wheeled robots, and humanoid robots. "sar" stands for "simulation and real"
 
-This framework supports legged_gym based on IaacGym and IsaacLab based on IsaacSim. Use `framework` to distinguish them when using them.
+This framework supports legged_gym based on IaacGym and IsaacLab based on IsaacSim. Use `framework` to distinguish.
 
 [Click to discuss on Discord](https://discord.gg/vmVjkhVugU)
 
diff --git a/README_CN.md b/README_CN.md
index 25a3105..3796415 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -4,7 +4,7 @@
 
 机器人强化学习算法的仿真验证与实物部署，适配四足机器人、轮足机器人、人形机器人。"sar"代表"simulation and real"
 
-本框架支持基于IaacGym的legged_gym，也支持基于IsaacSim的IsaacLab，使用时用`framework`加以区分。
+本框架支持基于IaacGym的legged_gym，也支持基于IsaacSim的IsaacLab，用`framework`加以区分。
 
 [点击在Discord上讨论](https://discord.gg/MC9KguQHtt)