汽笛 (qì dí) — steam whistle, siren

Definition

Examples

• 远处传来火车的汽笛声。
  Yuǎn chù chuán lái huǒ chē de qì dí shēng.
  The sound of a train whistle came from afar.
• 轮船的汽笛响了三声。
  Lún chuán de qì dí xiǎng le sān shēng.
  The ship's whistle sounded three times.
• 工厂里的汽笛每天下午四点准时响起。
  Gōng chǎng lǐ de qì dí měi tiān xià wǔ sì diǎn zhǔn shí xiǎng qǐ.
  The factory siren sounds precisely at 4 pm every day.