留美的门槛又高了，定居费用要上涨，引发广泛争议
For newcomers, both legal and undocumented, the cost of pursuing the American dream is about to go up. The U.S. Citizenship and Immigration Service is doubling, and in some cases tripling, its fees. Beginning July 30, the charge for adults seeking residency will exceed $1,000; the fee for citizenshi…