Strato
abbr. stratosphere 平流层, 固温层
🗣️ 情景例句
Did you have dinner, Robbie?
你吃晚餐了吗， Robbie？
My goodness! A snake!
天呀！有蛇！
But I'm worried about his Chinese.He may fall behind the other students when he comes back.
但我担心他的中文。等他回来后，他可能会落到其他同学后面。