D-usnic acid
[化] 右旋地衣酸
🧩 词语组成解析
🗣️ 情景例句
What's your occupation?
你的职业是什么？
I told him to stay for lunch.
我告诉他留下来吃午餐。
The Shute family lived in the southern part of the USA.
舒特一家住在美国南部。