例句：
The engine is very noisy at high speed.
這個發動機轉速高時噪音非常大。
Our next-door neighbours are very noisy.
我們隔壁的鄰居非常吵。
This area can be very noisy at night-time.
這個地方夜間有時會非常吵。
When I approached, they grew silent.
當我走近時，他們變得沉默了。
She was silent, smiling mysteriously.
她沉默不語，神秘地笑著。
Her voice quavered and she fell silent.
她的聲音顫抖著，繼而沉默了下來。
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