重點講解：
1. set alight 燃燒；著火；
A cigarette set the dry grass alight.
一支香煙把干草點燃了h|JOjAx0Ti^!fH;p。
2. gun down 槍殺；開槍射傷；
He had been gunned down and killed at point-blank range.
他被近距離開槍射殺KA85#p0&@bP。
3. respond to 應對；作出回應；作出反應；
Like any other public servants, police must respond to public demand.
和其他所有公務員一樣，警察必須服務于公眾的需求3g*.~Cih)s[9dSnV。
4. in contact with 保持聯系；有聯系；
We're in contact with the children and with the children in hospital and it seems to be being managed well.
我們跟在酒店隔離和在醫院治療的孩子們都保持著聯系，看起來各方面安排的都很好M%g4]l&huS.GoPJED。