Singapore has a 63-day tourist visa. Ten days after I returned to China, can I still take this visa to Singapore within the validity period of 20 days? compare

No, unless your visa is a multiple-entry visa.

A valid visa must meet two prerequisites.

1, one-time use, effective;

2. The visa is valid.

Attachment: What is a multiple-entry visa?

Multiple entry visa means that ordinary visa can be used multiple times (within the time limit).

Visa is the annotation and seal of the sovereign organ of a country on the passport or other travel documents held by its own or foreign citizens to show that they are allowed to enter or leave the country or pass through it. It can also be said that it is an endorsement certificate issued to them.

Generally speaking, a visa is a document issued by a country's entry-exit administration (such as immigration bureau or its embassy or consulate abroad) to approve the entry of foreign citizens.