crack of dawn

基本解释

The working day began at 8am, the crack of dawn for investment bankers in those days.
工作日8点上班，对于投行家来说此时正是破晓时分。
Every family does Easter a little differently, so I’ll tell you about my family. We always get up at the crack of dawn on Easter morning for the Sunrise Service at our church.
Alison老师告诉偶每个家庭庆祝复活节的方式都有点不同，然后虎虎就笑眯眯地问了她家的庆祝方式,她说那天，她家的所有人会在破晓时分就起床，赶到教堂去做一个小时左右的宗教仪式，主要唱些赞美诗和一些庆祝耶稣复活的歌曲。
He gets up at the crack of dawn to do a couple of hours’ extra ploughing. He even refuses to take a day off when he splits his hoof.
他每天天刚亮就起床，以便能多耕几小时的地，甚至在马蹄撕裂的情况下，他都拒绝休假一天。

And we do. Cracking jokes,grins, Long past the crack of dawn Like"How long will you be up?"

The working day began at 8am, the crack of dawn for investment bankers in those days.
ECONOMIST: Siegmund Warburg
Boston this afternoon for the EnergySMART 2012 Conference, which kicks off tomorrow at the crack of dawn.
FORBES: Demand Response: Green Energy's Gateway Drug?