深夜

深夜 [shēn yè]

1. ■ late at night; in the small hours of the morning:

深夜勤读 study late at night;

工作到深夜 work late into the night;

谈到深夜 talk deep into the night;

在深夜 in the deep of night;

他一直学习到深夜。 He went on studying deep into the night.