Ept
[化] 三元乙丙橡膠; 乙丙三元橡膠
??? 情景例句
Really? What part?
真的？ 什么地方？
Which would you prefer, a smoking seat or a non-smoking seat?
你喜歡哪種，吸煙座還是禁煙座呢？
He spent most of his life gathering money.
他一生大部分時間用來積聚錢財。