Ethylenic
a. ethylene的变形
🗣️ 情景例句
Has no real interest in the job.
对工作并不很感兴趣。
He that would know what shall be must consider what has been.
欲知未然，须思已然。
That's the trouble, vicar,' answered Bill.
“问题就在这里，牧师，”比尔回答说。