at night / in the night

at night / in the night
at night / in the night

at night / in the night
都正确
at night 指晚上,但不一定天黑,多指晚上6点以后.还有,at night 有描述习惯的倾向.
in the night 指深夜,天漆黑漆黑的感觉,有描述一次性时间的倾向.

区别不大
at night 就是指晚上
in the night 一般翻译为在夜间，半夜
例：
I watch TV till ten at night.
我晚上看电视看到10点。
I woke up in the night feeling cold.
半夜把我冻醒了.

都对的,视句法而定
at night: She does her housework at night.
in the night: 一首很著名的旧歌叫 strangers in the night 黑夜里的陌生人

at night 一般都这样说。。。
in the night至今还没发现过