1. 参加一次电视竞赛的拍摄 attend the filming of a TV quiz programme
2. 上学 attend school
3. 直到。。。才。。。 not… until
那个男孩直到妈妈回来才上床睡觉。
The boy didn’t go to bed until his mother come back.
Not until his mother came back did the boy go to bed.
It was not until his mother came back that the boy went to bed.