at the crack of dawn
成語所屬單字dawn
at the crack of dawn — 慣用語
1. very early in the morning, at or just before the first light of day, usually ear
1.慣用語
釋義
天剛亮時；一大早
very early in the morning, at or just before the first light of day, usually earlier than what is considered normal
例句
The fishermen set out to sea at the crack of dawn to reach the best fishing waters.
Fatima woke up at the crack of dawn to catch her flight to Seoul.