多嘴问下,不晓得北京的可可网友们知不知道人民大学周五晚的英语角呢?有没有去过?或者是不是一直有去呢?有想法的可以在下面留言.^.^

Do sth from scratch: 白手起家,从零开始

Do sth from the beginning; not using any work done earlier; without any previous preparation or knowledge

I learned German from scratch in six months. 我从零学起,六个月学会了德语.

They decided to dismantle the machine and start again from scratch. 他们决定拆掉机器,从头再来.

The fires destroyed all the plans. Now we'll have to start again from scratch. 大火毁了所有的计划,现在我们必须从头再来.

Scratch your head (over sth): to think hard in order to find an answer to something 苦苦琢磨;苦思冥想;绞尽脑汁

We're all scratching our heads for an answer to the problem. 为了找到这个问题的答案我们都绞尽脑汁.

you scratch my back and I'll scratch yours
used to say that if somebody helps you, you will help them, even if this is unfair to others 礼尚往来;你帮我,我就帮你;你给我好处,我就给你好处.

Back-scratching: there is too much back-scratching in local politics in this town. 这个城镇的地方政治中互开方便之门的事情太多了.