a bolt from the blue 晴天霹雳$ L9 }" b0 F e5 f
a piece of cake 轻而易举 1 H; j" i4 D5 J, N- p1 nabove board 光明正大: C- v( a" N8 j1 _0 V* P8 n/ h
against the clock 分秒必争 ) q/ h6 g; ^4 p ~all thumbs 笨手笨脚 1 c1 h5 d/ ?; gall wet 大错特错 0 E: H! Q$ K5 \1 |) T0 T! A, E6 Gants in sb.'s pants 坐立不安 1 d4 V1 q2 @* Z V1 oapple-pie order 井然有序