1、head off

拦截;拦住

He changed direction swiftly, turned into the hallway and headed her off.

他迅速改变方向，拐进走廊截住了她。

阻止，防止（尤指不愉快的事）发生

He would ask Congress to intervene and head off a strike.

他将要求国会进行干预，防止发生罢工。

You have to be good at spotting trouble on the way and heading it off.

你必须善于发现潜在的麻烦并加以化解。

2、decide

决定，拿定主意（做）

She decided to do a secretarial course.

她决定修一门文秘课程。

He has decided that he doesn't want to embarrass the movement and will therefore step down.

他已拿定主意：他不想令运动陷入困窘的境地，因此决心辞职。

解决;判决;裁决

She was still young, he said, and that would be taken into account when deciding her sentence.

他说，她还年轻，而这一点在对她量刑时将会予以考虑。

This is an issue that should be decided by local and metropolitan government.

这个问题应该由当地及大都市政府共同解决。

（事件或事实）决定，确定（某一选择或结果)

The goal that decided the match came just before the interval.

决定本场比赛结果的进球是在中场休息前一刻打入的。

The results will decide if he will win a place at a good university.

这些成绩将决定他能否上一所好大学。