Pentadecyl
十五(烷)基
🗣️ 情景例句
I've been wrestling
我一直左思右想
Mother begins baking cookies two weeks before Christmas.
自圣诞节的两周以前，母亲就开始做小甜饼了。
The hunt for the puma began in a small village where a woman picking blackberries saw 'a large cat' only five yards away from her.
搜寻美洲狮的工作是从一座小村庄开始的。那里的一位妇女在采摘黑莓时的看见“一只大猫”，离她仅5码远，