at night 的意思是during any night，通常表泛指。在非正式文體中，可用復(fù)數(shù)名詞不加介詞來指反復(fù)進行的活動。in the night的意思是during one particular night，通常表特指。

at night的用法

1、It was late at night, and all was quiet in the village.

夜深了，村子里沉靜下來。

2、The couple wed late at night in front of just nine guests

深夜這對情侶在僅有的9位賓客面前舉行了婚禮。

3、By day a woman could safely walk the streets, but at night the pavements became dangerous

白天的時候，婦女可以安全地在街上行走，而到了夜晚人行道上會變得很危險。

4、Thieves broke into the manor at night.

小偷晚上闖進了莊園。

5、I don't ride the subway late at night.

我深夜不坐地鐵。

in the night 的用法

1、I woke up twice in the night.

我夜里醒過兩次。

2、Her chiffon skirt was fluttering in the night breeze.

她的雪紡裙在晚風(fēng)中飄動著。

3、He lost his way in the night.

黑夜中他迷途了。

4、Stars twinkled in the night sky.

夜空中群星閃動。

5、There was a dull red glow in the night sky above the steelworks.

夜晚煉鋼廠的上空閃著暗紅色的光。