Thermoduct
温度逆增形成的大气层波导
🗣️ 情景例句
I hear the exams will be very tough.
我听说考试挺难的。
I remember the girl whose father goes there every summer.
我记得那个女孩的父亲每年夏天都去那里。
The question was, which one?
问题是，哪一种气体导致火灾呢？