a bolt from the blue 晴天霹雳! r- z4 i0 y e3 Y4 a2 k( z
a piece of cake 轻而易举 $ c2 K5 x* j, V; ]5 r# p& vabove board 光明正大( Q0 D) J. A" o7 T# o
against the clock 分秒必争9 q, z# X3 l$ n
all thumbs 笨手笨脚 * t! n8 w. ^( p& e8 Eall wet 大错特错- t3 B) u5 T3 D, y; s; |
ants in sb.'s pants 坐立不安- J8 c# Z$ S/ U8 s* w
apple-pie order 井然有序