例句：
They refused him a visa.
他們拒絕給他簽證。
The passports, with the visa stamps, were waiting at the embassy.
護照都加蓋了簽證章，在大使館等待領取。
They overstayed their visa.
他們居留超過了簽證期限。
They thought that their relatives would be able to fix the visas
他們以為他們的親戚們會把簽證辦好。
He had wangled his way into the country without a visa
他在沒有簽證的情況下設法混進了那個國家。