Undersealed
vt. （为防尘）密封（汽车）底部\\nn. [电子] 底封
🗣️ 情景例句
I fell out of the boat!
我摔到船外去了。
I give you my word for it.
对于此事我向你保证。
It looks as if she's gone away for a few days.
好象她要外出好几天了。