a bolt from the blue 晴天霹雳 Q& h* M+ o! X6 l, W; H9 q
a piece of cake 轻而易举 2 H* w- I9 Q& ^; r# H7 Qabove board 光明正大 3 u. R0 P( `4 P0 a' uagainst the clock 分秒必争; _; ~* v7 S6 C
all thumbs 笨手笨脚 . d) A4 y# [$ L Yall wet 大错特错5 C( X, e: m1 r
ants in sb.'s pants 坐立不安 1 m) Z- [2 Q1 e# X* H# g# @- q( ]apple-pie order 井然有序