A pigeon emerges, wings flapping noisily, from the tower.一只鸽子从塔里钻出来，扑扑地拍打着翅膀。A pigeon strutted along the roof, cooing rhythmically.一只鸽子沿着屋顶大摇大摆地走, 有节奏地咕咕叫.The pigeon homed from a distance of 100 miles.鸽子从百英里之外返回窝巢....pig...
A pigeon emerges, wings flapping noisily, from the tower.一只鸽子从塔里钻出来，扑扑地拍打着翅膀。I don't care where the money comes from — that's not my pigeon.我不管钱从哪儿来,那不是我的事.The pigeon homed from a distance of 100 miles.鸽子从百英里之外...
He pushed everyone full speed ahead until production hit a bottleneck.他催促所有人拼命干活，直到生产遭遇瓶颈。The transportation bottleneck has blocked the movement of the cargo.运输的困难阻塞了货物的流通.China's strained railroads already become a...