如果你想签证旅游团，一切由你做主。我只是想明白整个时间和团队在一起会非常有意思吗。
Its up to you if you want to do the visa with a tour group, I just cant see how it would be much fun since you'd have to stay with the group the entire time.
我只是想明白你所说的真正的朋友，是指什么，但我不知道这个因素，在真正的友情这个概念中占多大分量。
Ok, I was just trying to see what you mean by true friend. But I don't know how far this is gonna take in terms of the concept of true friendship.
异步编程有时候非常麻烦，我明白开发人员有时候忽略回调引用，是否只是想让控制流能更加直截了当一些。
Asynchronous programming can sometimes be a hassle and I understand if developers sometimes omit the callback references just to keep the control flow more straight-forward.
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