... get a foot in the door 一脚已经进了门里（获得立足点，占一份） bruise up上足发条（紧张，兴奋） when pigs fly 猪飞的时候（绝不可能） ...
双语例句
1
On the first day of Mr Sannikov's, many police witnesses failed to turn up, and one claimed a bruise on his backside had briefly put him in hospital.
Sannikov的审讯第一天，许多警界证人未能出席，有一位声称自己因背部瘀伤而短暂入院。
2
Putin wore heavy makeup at a meeting Wednesday with Ukraine's pro-Russian leadership, but yellow foundation could barely cover up bluish, bruise-like blemishes and puffiness on his cheek bones.