diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e0b81da4..6a437532 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,47 +1,74 @@
-name: Build
+# 定义工作流名称
+name: 编译 PCL
 
+# 定义触发器
 on:
+  # 提交内容修改代码或编辑工作流时
   push:
     paths:
       - 'Plain Craft Launcher 2/**'
       - '.github/workflows/**'
+  # 新的PR修改代码或编辑工作流时
   pull_request:
     paths:
       - 'Plain Craft Launcher 2/**'
       - '.github/workflows/**'
+  # 手动触发时
+  workflow_dispatch:
 
+# 定义工作列表
 jobs:
+  # 唯一的工作：build
 
   build:
-
-    strategy: 
+    strategy:
+      # 定义矩阵，矩阵中每组都会单独执行，并使矩阵本身成为可用的上下文
       matrix: 
+        # 五个编译选项
         configuration: [Debug, Release, Snapshot, BETA, ReleaseUpdate]
 
+    # 显然，只有Windows才能构建.NET Framework程序
     runs-on: windows-latest
 
+    # 定义步骤列表
     steps:
-    - name: Checkout
+
+    - name: 签出仓库
+      # 调用actions/checkout仓库的调用预设工作流
       uses: actions/checkout@v4
+      # 调用参数
       with:
+        # 只签出第一层
         fetch-depth: 0
 
-    - name: Set Describe
+    - name: 导出提交描述
       shell: bash
       run: |
           Describe=`git describe --tags`
           echo "Describe=$Describe" >> $GITHUB_ENV
+      continue-on-error: true
+
+    # 在极少数情况下，可能没有可用的提交描述。详见 https://github.com/Silverteal/PCL2/actions/runs/9518525229/job/26239628548
+    - name: 导出备用描述
+      shell: bash
+      run: |
+          echo "Describe=unknown" >> $GITHUB_ENV
+      if: ${{ failure() }}
 
-    - name: Setup MSBuild.exe
+    - name: 配置 MSBuild
       uses: microsoft/setup-msbuild@v2
       with:
+        # 生成工具使用64位架构
         msbuild-architecture: x64
 
-    - name: Build
+    - name: 编译源代码
       run: msbuild "Plain Craft Launcher 2\Plain Craft Launcher 2.vbproj" -p:Configuration=${{ matrix.configuration }}
 
-    - name: Upload a Build Artifact
+    - name: 打包并上传编译产物
       uses: actions/upload-artifact@v4
       with:
-        name: ${{ matrix.configuration }} ${{ env.Describe }}
+        # 文件名格式示例：pcl2-autobuild-2.7.4-37-a0b1c2d3-Snapshot.zip
+        # 其中2.7.4是仓库最新tag，37是自上一个标签的提交数，a0b1c2d3是最后一次提交哈希
+        name: pcl2-autobuild-${{ env.Describe }}-${{ matrix.configuration }}
         path: Plain Craft Launcher 2\obj\${{ matrix.configuration }}\Plain Craft Launcher 2.exe
+