New Words：

silence [ˈsaɪləns]
n.沉默；寂静；无声
v.压制；使安静；使不说话

Sample Sentences：

The silence was broken by a loud cry.
There was nothing but silence in the room.
At this moment silence is better than speech.

The teacher tried to silence the pupils.
He silenced the noisy children with a fierce look.

speech [spiːtʃ] n. 演讲;讲话;演说;发言

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