green card
参考词典中green card的常规释义：
基本释义
- n. (AmE) 绿卡
英英解释
1个名词解释
- a card that identifies the bearer as an alien with permanent resident status in the United States
[例]- he was surprised to discover that green cards are no longer green
点击查看……- a card that identifies the bearer as an alien with permanent resident status in the United States
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