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a. 扣紧的
🗣️ 情景例句
But you had to be good at math.
但是你数学一定很好。
I'm all mixed up.
我全搞混了。
But other suns, stars as the astronomers call them, are bound to have planets like our own,
但是，其他的太阳，即天文学家所说的恒星，肯定会有像我们地球一样的行星。