Does America have too many immigrants? That is a question which sparks heated political debate in Washington. Little wonder. Earlier this year Barack Obama pledged to make immigration reform a central plank of his second term as president.
美國的移民是不是太多了？這個問題在華盛頓引發了激烈的政治辯論。這一點都不奇怪。今年早些時候，巴拉克•歐巴馬(Barack Obama)承諾稱，要將移民改革作爲其第二個總統任期的一項核心任務。
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