Ballonet
n. 气室(调节气球升降)
🗣️ 情景例句
She's an easy-going teacher.
她是位随和的老师。
I believe they also deserve this award.
我认为他们也有资格获得这一奖项。
Fine. What's the weather like in Beijing?
很好。北京的天气怎样？