The chair carriers arrived at the crack of dawn.

轿是一早就到了.

At the crack of dawn, we get up to open our presents.

天刚亮, 我们就起床去打开礼物.

I wake up at the crack of dawn and go for a run every day.

我每天在黎明时分醒来跑步。

Paolo:You're lucky! I had to get up at the crack of dawn when I was at university.

你真幸运！我在上大学时必须在破晓十分就起床。

Paolo: You're lucky! I had to get up at the crack of dawn when I was at university.

你真幸运！我在上大学时必须在破晓时分起床。