1、将来我想当翻译或导游.
I want to work (as) a (translator) or a tour (guide in the future).
2、所有这些人按年龄分成三个小组.
All these people were divided into three groups (according to) age.
3、他问我是否愿意和他一起到巴黎旅游.
He asked me (whether I would like) to travel to Paris with him.