They turn the light on at dark.

他们天黑时开灯。

youdao

The hunters camped by the lake at dark.

天黑时，猎人们在湖边宿营。

youdao

The bar street has many customers even at dark nights.

酒吧一条街的生意在深夜都很好。

youdao

This Photo Was Taken at Dark or Dawn?

这张照片是在黄昏拍摄的还是在黎明拍摄的？

youdao

This Photo Was Taken at Dark or Dawn?

这张照片是在黄昏拍摄的还是在黎明拍摄的？

youdao