Kel-f (elastomer)
[化] (商)凯尔-F橡胶; 聚三氟氯乙烯橡胶
🧩 词语组成解析
n. (Kel)人名；(俄)凯尔
🗣️ 情景例句
So far so good.
到目前为止一切都好。
You'll regret it if you don't go.
不去你会后悔。
Who was second? Who was third?
谁是第二？谁是第三？