a bolt from the blue 晴天霹雳7 S; Q3 k8 P$ A( q, Z
a piece of cake 轻而易举 4 x, l* q7 _' ~. J8 Nabove board 光明正大$ p6 ?: d' t# b
against the clock 分秒必争 8 A; p1 t+ j. ^: O( d3 yall thumbs 笨手笨脚 % A; K/ n; e, x$ H: gall wet 大错特错2 q/ V( i; ? ^2 J
ants in sb.'s pants 坐立不安3 N2 s) z* |5 `
apple-pie order 井然有序