a bolt from the blue 晴天霹雳2 k4 b8 J: v3 ^6 h- N" w* z! w/ W
a piece of cake 轻而易举# L( X v4 c8 d) y: t
above board 光明正大4 w" U- B0 N ^, g/ A
against the clock 分秒必争 ) }! ^- N6 y f9 U' X' X: vall thumbs 笨手笨脚 8 T1 O p/ d) K4 Lall wet 大错特错 4 S. U- g- s6 `! y! M( N* lants in sb.'s pants 坐立不安 : [+ u5 @* Q' B) mapple-pie order 井然有序