Octadecyne
[化] 十八炔; 十八碳炔
??? 情景例句
It's a pleasure to meet you.
認(rèn)識(shí)你是我的榮幸。
Love is not to be found in the market.
愛(ài)情在市場(chǎng)上是找不到的。
Will you please have the check certified?
那么請(qǐng)開(kāi)保付支票好嗎？