diff --git a/arch_spec.md b/arch_spec.md
index 0b3650f575b48d12eeb0d6709992d60d3f3c75e7..2ce739e44269f849a5f7f6e7a847bf14e7c02ea2 100644
--- a/arch_spec.md
+++ b/arch_spec.md
@@ -1,36 +1,36 @@
 ```
 .
-├── components                                                  --- 可选组件，可裁剪，依赖kernel
-│   ├── cppsupport                                              --- C++支持
-│   └── cpup                                                    --- CPUP功能
-├── kal                                                         --- 内核抽象层
-│   ├── cmsis                                                   --- cmsis标准支持
-│   └── posix                                                   --- posix标准支持
-├── kernel                                                      --- 内核最小功能集支持
-│   ├── arch                                                    --- 硬件架构相关
-│   │   ├── arm                                                 --- arm32架构
-│   │   │   └── cortex-m4                                       --- cortex-m4架构
-│   │   │       └── iar                                         ---
+├── components                                                  --- Optional components
+│   ├── cppsupport                                              --- C++
+│   └── cpup                                                    --- CPUP
+├── kal                                                         --- Kernel Abstraction Layer
+│   ├── cmsis                                                   --- cmsis
+│   └── posix                                                   --- posix
+├── kernel                                                      --- Minimalistic kernel funtionalities
+│   ├── arch                                                    --- Support for hardware architectures
+│   │   ├── arm                                                 --- arm32
+│   │   │   └── cortex-m4                                       --- cortex-m4
+│   │   │       └── iar                                         
 │   │   │           ├── los_atomic.h
 │   │   │           ├── los_context.h
 │   │   │           ├── los_interrupt.h
 │   │   │           └── los_mpu.h
 │   │   └── include
-│   │       ├── los_arch_atomic.h                               --- 定义通用arch的原子操作
-│   │       ├── los_arch_context.h                              --- 定义通用arch的上下文切换
-│   │       ├── los_arch.h                                      --- 定义通用arch初始化
-│   │       └── los_arch_interrupt.h                            --- 定义通用arch中断
+│   │       ├── los_arch_atomic.h                               --- Atomic operations
+│   │       ├── los_arch_context.h                              --- Context switch
+│   │       ├── los_arch.h                                      --- Initialization
+│   │       └── los_arch_interrupt.h                            --- Interrupts
 │   ├── include
-│   │   ├── los_config.h                                        --- 功能开关和配置参数
-│   │   ├── los_event.h                                         --- 事件
-│   │   ├── los_liteos.h                                        --- liteos最小功能集对外提供的头文件
-│   │   ├── los_memory.h                                        --- 堆内存管理
-│   │   ├── los_mutex.h                                         --- 互斥锁
-│   │   ├── los_queue.h                                         --- 队列
-│   │   ├── los_scheduler.h                                     --- 调度算法
-│   │   ├── los_sem.h                                           --- 信号量
-│   │   ├── los_task.h                                          --- 任务
-│   │   └── los_timer.h                                         --- 定时器
+│   │   ├── los_config.h                                        --- Configuration parameters
+│   │   ├── los_event.h                                         --- Events management
+│   │   ├── los_liteos.h                                        --- Kernel types and functions
+│   │   ├── los_memory.h                                        --- Heap memory management
+│   │   ├── los_mutex.h                                         --- Mutex
+│   │   ├── los_queue.h                                         --- Queue
+│   │   ├── los_scheduler.h                                     --- Scheduler
+│   │   ├── los_sem.h                                           --- Semaphores
+│   │   ├── los_task.h                                          --- Tasks
+│   │   └── los_timer.h                                         --- Timer
 │   └── src
 ├── targets
 │   └── targets
@@ -40,13 +40,13 @@
 │           ├── Libraries
 │           ├── main.c
 │           ├── project
-│           ├── target_config.h                                 --- 板级配置功能开关和配置参数
+│           ├── target_config.h                                 --- Hardware target configuration
 │           └── Utilities
 └── utils
     ├── include
-    │   ├── los_compiler.h                                      --- 编译工具配置，类型定义
-    │   ├── los_debug.h                                         --- debug，printf相关
-    │   ├── los_error.h                                         --- 错误定义
+    │   ├── los_compiler.h                                      --- Compiler configuration
+    │   ├── los_debug.h                                         --- Debugging facilities
+    │   ├── los_error.h                                         --- Errors codes and definitions
     │   └── los_list.h
     └── src
 ```