Stratostat
平流层气球
🗣️ 情景例句
Right. What's old?
对了， 旧的东西是什么？
Did the film live up to your expectations?
这部电影达到你期望的标准了吗？
But a closer study of the evidence, supported by a deeper sense of the period,
但是，进一步仔细研究，对那个时代的深化了解，