Undecanoyl
[化] 十一酰; 十一烷酰
??? 情景例句
I see how people spend their leisure time--
我看到人們怎樣利用閑暇時間
He went to the post office to mail a letter.
他去了郵局寄信。
Sounds like a good idea. Let's do that.
聽起來是個好主意。咱們去游泳吧。