1.quarrel with one's bread and butter:自己作对; 作对自己生计不利的事; 厌弃自己的职业
e.g.:Why dare you argue with our boss, Tom? I think you are quarreling with your bread and butter. He can easily find a reason to fire you at any time.
汤姆，你怎么敢和老板争吵哇？我认为你是在和自己的饭碗闹别扭。他随时就能找到理由把你给开了。
2.hunt for a job:seek or find a job　找工作
e.g.:After graduation, the young lady had to hunt for a job to support her self.
毕业后，这个年轻女士必须去找份工作养活自己。
3.be worth one's salt:be up to or capable of one's job　称职；胜任
e.g.:Tom often receives bonuses, because the boss thinks he is worth his salt.
汤姆经常得到奖金，因为老板认为他很称职。
4.chalk it up to experience:当作积累经验
e.g.:I failed again this time, but I won't lose heart. I'll just chalk it up to experience.
我这次又失败了，但是我不会灰心的，就当作积累经验吧。
5.play fast and loose with:处世轻率；行为反复无常
e.g.:Be honest in your life, don't play fast and loose with that girl's love for you.
生活态度要诚实，别玩弄那个女孩对你的感情。
6.out of the frying pan, into the fire:to exchange your situation for another that is worse　跳出煎锅，又入火坑。
A: Give up your present job and apply for this job here. It is much better paid.
A：把那个工作辞掉，到这儿来申请这份工作。报酬要高的多。
B: No dice! I will stick with what I've got. I don't want to jump out of the frying pan and into the fire. B：绝对不行！我还是坚守现有的这份工作。我可不想刚跳出煎锅，就又入火坑。