First,they don't meet in the daytime; they meet either early before light,at dawn, or after dark,at night.

首先，他们不在白天聚会;,要么在天亮前的黎明，要么在天黑后的夜晚。

耶鲁公开课 - 新约课程节选

"There have been times where Michelle and I have been sitting around the dinner table and we're talking about their friends and their parents and Malia and Sasha, it wouldn't dawn on them that somehow their friends' parents would be treated differently, " he said.

BBC: Obama's gay marriage moment

We still don't have dawn.

CNN: Transcript of May 'CNN Money Summit: Money & Main St.'

This isn't a glorious new dawn of cross-party cooperation.

BBC: Activity? Yes...behind the scenes