diff --git a/cloudfunctions/tts/index.js b/cloudfunctions/tts/index.js
index c89c25b..5e4b7c4 100644
--- a/cloudfunctions/tts/index.js
+++ b/cloudfunctions/tts/index.js
@@ -20,6 +20,7 @@ cloud.init()
 
 // Polished, fixed prompts.
 const PROMPTS = {
+  start: '训练已开始',
   halfway: '已完成一半啦,坚持就是胜利!',
   last30: '最后30秒,保持呼吸,稳住姿势!',
   last10: '最后10秒,再加把劲!',
diff --git a/pages/timer/timer.js b/pages/timer/timer.js
index b685a1c..bbf91fc 100644
--- a/pages/timer/timer.js
+++ b/pages/timer/timer.js
@@ -165,6 +165,8 @@ Page({
     if (this.data.isRunning) return
     this._timer.start(this.data.duration)
     this.setData({ isRunning: true, status: 'running' })
+    const s = storage.getSettings()
+    if (s.voiceGuide !== false) voice.play('start')
   },
 
   onPause() {
diff --git a/utils/voice.js b/utils/voice.js
index 97350b2..74fc3d9 100644
--- a/utils/voice.js
+++ b/utils/voice.js
@@ -18,6 +18,7 @@
  */
 
 const PROMPTS = {
+  start: '训练已开始',
   halfway: '已完成一半啦,坚持就是胜利!',
   last30: '最后30秒,保持呼吸,稳住姿势!',
   last10: '最后10秒,再加把劲!',