天黑时

• at dark

例句

1. 他说天黑时他妈妈还不来看他，他就和我们一起去。
   He said that he would go with us if his mother did not come to see him until it was dark.
2. 板球队员们在太阳下练一整天，天黑时结队离开球场。
   The cricketers trooped off the field at the end of a long day in the sun.