Welcome to China. May I have a look at your customs declaration?
欢迎来中国。我可以看一下您的入境申请报表吗?
He who has not tasted bitter knows not what sweet is.
不吃苦中苦,哪知甜中甜。
A recent survey of the effects of noise revealed (surprisingly?) that dogs barking incessantly in the night rated the highest form of noise pollution on a scale ranging from 1 to 7.