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公用分组交换网
🗣️ 情景例句
And if I think about it long enough, you never know ...
如果我一直考虑下去的话 ，说不定……
The best teacher one can have is necessity.
我们能得到的最好教师是“需要”。
Had he worked harder, he would have gotten though the exams.
如果他努力了的话，他就会通过考试的。