Anyone who goes abroad or comes to China has to carry at least three documents with him/her: passport and visa, health certificate and boarding card if he/she takes a plane.

• 任何人出国或任何外国旅行者到中国来，如果是乘坐飞机，一般至少要带三样证件：护照与签证，健康卡即检疫证明（俗称黄皮书），以及登机卡。