Definition
The very early part of the morning.
大清早
We had to leave at sparrow fart to catch the early flight.
我们必须在黎明时分离开，以赶上早班飞机。
Farmers usually start their work at sparrow fart.
农民通常在黎明时分开始工作。
He gets up at sparrow fart every day to go for a run.
他每天黎明时分起床去跑步。