1. The sound of the doorbell awoke the baby.
   门铃声把婴儿吵醒了。
2. He was aroused from his sleep by the doorbell.
   门铃声把他从睡眠中唤醒。
3. He pressed the doorBell.
   他按了门铃。
4. He was aroused from his nap by the doorbell.
   他午睡时被门铃吵醒.
5. Please answer the doorbell.
   请应门铃声开门。

　1个名词解释