“visa exemption”造句，怎麼用visa exemption造句

During the visit, the two sides signed the agreements on the visits of citizens of the two countries and the visa exemption for group tourists.

She said the visa exemption agreement marked the development of bilateral relations had reached a higher level.

What should be done in case a foreign national who has the 72-hour transit visa exemption cannot leave China within 72 hours due to some special reason after entry?