a bolt from the blue 晴天霹雳/ E* D* M7 q5 m+ m z$ {5 J. ?# q
a piece of cake 轻而易举 % o8 B$ Q2 y6 g+ K" a+ pabove board 光明正大% F* K, [ }2 T, s& n* Y
against the clock 分秒必争 ; a4 V# {- B6 x# d2 F9 Z& n: Kall thumbs 笨手笨脚 + L+ Z6 a3 c. u, A& Y9 Fall wet 大错特错 & X: `0 G# K% }ants in sb.'s pants 坐立不安: R. P ` K$ b0 t$ i/ J9 C) J
apple-pie order 井然有序