stay up = do not sleep
get by = manage 想法对付
in connection with 与。。。有关
at first sight 第一眼看上去
in other words 换言之
in the long run 最终
for a change 为了该变一下
in the dark 不明白
at the deep end 蒙蔽
for the time being 一段时间
out of the blue 突然地
at a guess 猜测
by chance 偶然
on equal terms 平等地
on the wrong foot 走错了地方
on the whole 全部地 
We were caught on the wrong foot when they asked for delivery before June 30th.
The news of the closure of the factory came out of the blue.  No one was expecting it to happen. 

wheelchair