尽管美国企业遭遇全面禁止或禁止性关税的情形有所减少，但一系列监管障碍和政府政策，却使它们在华开展业务面临着不确定性。
While facing fewer blanket prohibitions or prohibitive tariffs , US companies face an array of regulatory obstacles and government policies that make doing business in China uncertain .
禁止性关税