单词：
family reunion:家庭聚会
A&E: Accident & Emergency (A&E) is a department in hospitals for patients without appointments, who need urgent help
bang:重击
dizzy:眩晕的
petrol:汽油
must不能用于过去和将来：There is no future or past form of must.
In informal British English, we sometimes use have got to instead of have to
例子：
- We have to change the engine oil.
- We’ve got to change the engine oil.
And in even more informal English we sometimes don't even say the have – so it becomes just got to. You might see this in text messages and on social media, for example:
- Got to change the oil.
And there’s one more way to say this: gotta. It’s the most informal of all these forms.
- Gotta change the engine oil.