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
Who's in charge here?
这儿谁负责？
He is a big figure in the business world.
他在商界是一位很有威望的人。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。