dusk/dʌsk/

n. the time before night when it is not dark yet

n. [U] 黄昏：The street lights go on at dusk. 街灯在黄昏时分亮起来。

◇As dusk fell, bats began to fly out of the cave. 夜幕降临时，蝙蝠开始飞出山洞。

常犯错误

✗ The park closes at the dusk.

✓ The park closes at dusk. 公园在夜幕降临时闭园。