The signs of the city never fail to impress the foreign tourists.
外国游客无一不对该城市留有深刻的印象。
Feed a pig and you'll have a hog.
种瓜得瓜,种豆得豆。
The hardened professional smuggler, on the other hand, is never troubled by such feelings, even if he has five hundred gold watches hidden in his suitcase.