Ballonets
n. 升降气袋；小气囊
🗣️ 情景例句
I don't know.
我不知道。
Do you usually do arithmetic on Sunday?
你通常在星期日做算术吗？
I'd like to introduce you to our company. Is there anything in particular you'd like to know?
我将向你介绍我们的公司，你有什么特别想知道的吗？