Ballonets
n. 升降气袋；小气囊
🗣️ 情景例句
It's unsafe for girls to go out alone at night.
女孩子晚上一个人外出很危险的。
It is as well to know which way the wind blows.
识时务者为俊杰。
Sometimes the yeast within a writer outlives a book he has written.
有时，一个作家一本书写完了，但兴奋仍不消散。