1. bring sth to sb 将某物带给某人
例句：
He does the jobs which can bring happiness to him.
他做那些能给自己带来快乐的工作。
2. ask for leave 请假
例句：
Can we ask for leave to see our roommate in the hospital?
我们能请假去医院看望室友吗？
3. be absent from 缺席
例句：
You must not be absent from the meeting without cause.
你必须参加那个会议，不得无故缺席。
4. a waste of 浪费
例句：
Attempting to change someone is a waste of time and energy.
尝试改变别人是一件浪费时间和精力的事情。
5. elective course 选修课
例句：
Most of the students of our class take Japanese as an elective course.
我们班大部分同学选修日语。
6. compulsory course 必修课
例句：
Mandarin is now being taught in over 500 primary and secondary schools, and some of them have made it a compulsory course.
英国超过500所中小学开设了中文课程，部分学校甚至将中文列入了必修课。
7. spare time to do sth 花费时间做某事
例句：
Susan spared most of her time to practise playing the piano.
苏珊花费很多时间练习弹钢琴。
8. because of 因为
例句：
Many motorists were forced to stop over in that town because of floods.
由于发大水， 许多开车旅游的人被迫停留在那个镇上了。
9. count on 指望，依赖，相信
例句：
Don't count on Lillian.
别依靠莉莲了。
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