| 单词 | green card |
| 释义 | green card green card n.（名词）An official document issued by the U.S. government to aliens, allowing them to work legally in the United States.绿卡：美国政府发给外国人的正式文件，允许其在美国境内合法地工作语源:[Formerly a green-colored card] [原指一种绿颜色的卡] |
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