無論到哪一個國家旅遊，只要走出中國，你首先做的第一步，就是準備籤證材料。
No matter which country you travel to, as long as you go out of China, the first step you should do is to prepare visa materials。
籤證材料一般包括護照、家庭資產證明、收入證明、單位證明、婚姻狀況、邀請函等多個材料。
These materials generally include passport, family assets certificate, income certificate, unit certificate, marital status, invitation letter, and other materials.
首先說明一點，對於這些材料，有些國家籤證官不一定細看，尤其是需要面籤的國家，比如說美國。
First of all, for these materials, visa officers in some countries do not necessarily look carefully, especially in countries that need to be interviewed, such as the United States.
但是你必須在籤證前做好充分的準備。
常言說得好，有備無患。
But you must make full preparations before you get a visa.
As the saying goes, be prepared.