1. I was roused by the sound of a bell.
    钟声把我吵醒了.

2. I rang the bell and was not surprised to see that Hugh was still as fat as ever.
    我按响了门铃，当看到休仍和往常一样胖时，我并不感到惊奇。

3. I have learned to say to ring a bell, but to beat a gong; to attend a meeting but to join in a conversation; to take a walk but to make a trip or to go on a journey.
    我学会了用英语说“打铃”和“打锣”，“参加会议”和“参加谈话”，“散步”和“旅行”时要用不同的动词。

4. In three years of day and night effort, Bell figured out how to send sound over a changing electric current.
    经过三年夜以继日的努力，贝尔弄清了如何通过波动的电流传送声音。

5. For whom did the bell toll?
    丧钟为谁而敲?