☆foul language 下流话
☆Your stay here is just(or only) a waste of time.
Teaching is a very rewarding profession.教书是一种很有价值的职业．
Exercise is a rewarding for our health.
☆by fits and starts. adv.间歇地,断断续续地,一阵一阵地
My brother studied accounting by fits and starts, so he failed.
☆tip n. ①建议②小费 ③提示，技巧
give sb. tips on/about sth. vt.给某人关于某事的建议 tip (about) = advice (on)
a good piece of advice 不说: a good advice
☆stink vi.臭 stingy
☆be patient with sb. 对...有耐心
Eg：If you want to be a good salesman,you must be thick-skinned.
☆Don’t be afraid to make mistake. 别怕犯错．
☆It depends on how you study it.那要看你如何去学习．
It depend on when you do it.那要看你何时去做．
☆funny farm 疯人院 正式：mental asylum
☆improve sth = make a lot of improvement in sth
☆how come(口) 无需要倒装=why
☆talk to(with) sb. about sth. vi. talk sb. into doing vt.说服
☆When he gave a speech, we realized that he was just talking nonsense.
☆He is a problem studnet.
How are you doing in ...? or: How are you getting along? 近来怎么样？
久违的老朋友还可以说：How are you? or How have you been?
Howdy 美国南部招呼语 answer: Howdy
☆blind date 相亲,盲目约会
☆I am afraid (that省略) it is going to rain, so we can't go on a picnic. 我认为...(弱语气)
☆What's the problem (with)?
= What's wrong?
= What's the matter (with)?
☆goof around 浪费时间，混时间
☆Aha, that's it. = Aha, I get it. = I understand.
☆kidding = joking