同义词，nightfall

nightfall的同义词为dayrise

例句

1、

The rebels waited until nightfall before they made their move.

叛乱者一直等到夜幕降临才开始行动。

2、

They had advanced 20 miles by nightfall.

夜幕降临时，他们已推进了20英里。

3、

They cast anchor at nightfall.

他们傍晚抛锚停泊。