Aerostat
n. 浮空器\\n[机] 气球, 飞船, 浮空器
✅ 同义词
🗣️ 情景例句
The patient showed a marked improvement.
病人病情显著好转。
Yes, but I don't want go downtown.
是的，但是我不希望上街。
It doesn't matter.
没关系。