我去过美国,所以我熟悉那里的风土人情。
我去过美国三次了。
我去过美国。
But in the United States, I would say, most definitely, my favorite city, my favorite place I've ever been.
但我十分确信,在美国,在我去过的城市和地方中,我最喜欢纽约。
I don't know if that's true. I haven't been to enough cities outside of the United States.
我不知道这是不是事实。我去过美国以外的地方还很少,不能妄下定论。
but I haven't been to a lot of really big cities around the United States,
虽然我也没去过美国的其它大城市,
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