Norcholanic acid
[化] 降胆烷酸
🧩 词语组成解析
🗣️ 情景例句
I've always wanted a springer spaniel.
我一直想要一只激飞狗。
It's $25.00 one way or $45.00 for a weekend excursion.
单程票价25美元，周末旅行来回票价45美元。
You must keep it a secret. You mustn't tell anybody else.
你必须保密，谁都不能讲。