1. They demand sacrifice and unselfishness, a long-term investment of the parents' time and money.
    他们需要我们做出自我牺牲和无私奉献，也就是父母对子女在金钱和时间上的长期投入。

2. I remember you used to date that gorgeous girl-she was a cheerleader.
    我记得你以前和那位漂亮的女孩约会----她是啦啦队长.

3. It takes a long time as well as many experts working together to compile an encyclopedia.
    编一本百科全书，不仅要花一段长时间，还要有许多专家一起工作才行。

4. I will excuse you this time.
    这一回我原谅你。

5. It is time you left home and learnt to fend for yourself.
    你应该离家自立了.

6. It was the first time they had ever met.
    那是他们初次会面.

7. I resent these incursions into/upon my leisure time.
    屡次侵占我的闲暇时间, 我很反感.

8. It´s time that men of good sense and good will to intervene.
    这该是那些头脑清醒和心地善良的人们出面干预的时候了。

9. It is time to make introductions all round.
    是大家互相介绍的时候了.

10. It is mandatory to pay a debtwithin a certain period of time.
    在一定的期间内还债是必须的。