Underseal
vt. （为防尘）密封（汽车）底部
✅ 同义词
📖 牛津释义
underseal
(Brit) (US undercoat) n [U]
tar-like or rubber-like substance used to protect the under-side of a motor vehicle against rust, etc （机动车底部的）防蚀涂层. underseal, v [Tn] coat the under-side of (a motor vehicle, etc) with a protective seal 用防蚀涂层涂（机动车等）的底部.
🗣️ 情景例句
It's nice to be alone with you, Grandpa.
很高兴单独与你在一起， 爷爷。
The flight number is ak708 on september 5th.
班机号码是9月5日ak708
The price increases haven't been too bad at all.
没有涨太多。