exit visa

基本解释

It took me five months to get the exit visa.
我花了五个月的时间才得到出境签证。
Lyudmila’s repeated applications for an exit visa were denied.
柳德米拉屡次申请出国签证却屡遭拒绝。
They applied for an exit visa in 1978. Michael Brin was fired for it, and his wife resigned.
两人于1978年申请了出境护照，迈克尔因此被开除，他的妻子辞职。

His papers were confiscated (he had, as a precaution, eaten his Chinese exit visa), and the Senate Subcommittee on Internal Security blacklisted him.
ECONOMIST: Obituary
He got enough money for their trip to the United States, and sent his parents a telegram to make sure that they could get an exit visa.
NPR: Remembrance, Reconciliation on Yom Hashoah
By her own account Sanchez has on some 20 occasions been rejected for the much-detested exit visa that for decades was required of all islanders seeking to go abroad.
NPR: Cuba Dissidents Approved, Denied For Passports

An exit visa is an official stamp in someone's passport, or an official document, which allows them to leave the country that they are visiting or living in.