diff --git a/README.md b/README.md
index efc4b44..68baee0 100644
--- a/README.md
+++ b/README.md
@@ -7,14 +7,14 @@ The software supports arbitrary anisotropy in both electrical conductivity and d
 To address the high computational cost of 3D modeling, em3d-MT integrates a direct linear solver with a double-layer parallelization strategy. This design supports efficient simulation over multiple frequencies using OpenMP-based multithreading and frequency-level parallelization.
 }
 
-#### 软件架构
+#### software framework
 
 This section provides detailed instructions for installing and configuring the em3d-MT package. The software is developed in MATLAB and requires proper setup of external solvers for efficient computation.
-2.1 System Requirements
+#### 2.1 System Requirements
 Operating System: Windows or Linux
 MATLAB Version: R2023a (or later)
 Memory: The actual memory usage depends on model size and number of frequencies. 
-2.2 Required Software
+#### 2.2 Required Software
 MATLAB (R2023a or later): The core environment in which em3d-MT operates.
 em3d-MT relies on several external tools and libraries to facilitate 3D geological modeling and mesh generation. The following software is required for proper functionality:
 GeoMesh
@@ -159,25 +159,4 @@ by Dimosthenis Pasadakis, Panua-Technologies, January 2024.
 
 
 
-#### 使用说明
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### 参与贡献
-
-1.  Fork 本仓库
-2.  新建 Feat_xxx 分支
-3.  提交代码
-4.  新建 Pull Request
-
-
-#### 特技
-
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