Nicollette married Harry so she could get a green card.尼科莉特同哈里结婚以便拿到绿卡。He is taking steps to obtain his green card.他正在想办法获取绿卡。Once she has her green card, she can seek work.一旦有了绿卡，她就可以找工作了。They held a lottery to determine who could get a green card.他们通过抽签决定谁能得到绿卡。