12.Do you think it necessary to 你认为有必要吗
Do you think it necessary to ask for official permission for the event to take place?
你觉得进行这项活动，有必要得到正式的批准吗?
13.Dont be afraid of 不要害怕
Dont be afraid of losing face.
不要害怕丢脸。
14.Dont take it for granted that 别认为理所当然
Dont take it for granted that your parents should support you all your life.
别以为你父母养你一辈子是天经地义的事。
15.For one thing， For another， 一方面另一方面
For one thing, these shoes dont suit you. For another, they are too expensive.
一方面，这双鞋子并不适合你;另一方面，这太贵了。
16.Generally speaking， 总的来说
Generally speaking, people like to hear compliments from others.
总的来说，人们都喜欢听到别人的称赞。