Stratospheroid
平流层气球
🗣️ 情景例句
Merry Christmas, Carl and David!
卡尔，大卫，圣诞快乐！
I'd like to explain what makes this factory special.
我要向你说明本工厂的特性。
Some things are collected deliberately in the home in an attempt to avoid waste.
居家度日，有目的地收藏某些东西是为了防止浪费。