目录 A diamond in the rough 1 A drop in the bucket 2 A frog in one’s throat 3 A piece of cake 4 A shot in the dark 5 Achilles’ heel 6 An arm and a leg 7 An eye for an eye 8 Apple of your eye 9 Armed to the teeth 10 As cool as a cucumber 11 At the drop the a hat 12 At the eleventh hour 13 Back to square one 14 Backseat driver 15 …… Under the gun 169 Under the weather 170 Under your nose 171 Up against the wall 172 Upper crust 173 Watched pot never boils 174 Wear heart on sleeve 175 Wet behind the ears 176 When pigs fly 177 When the chips are down 178 Whistle in the dark 179 Word of mouth 180 You are what you eat 181
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