D-usnic acid
[化] 右旋地衣酸
🧩 词语组成解析
🗣️ 情景例句
If I work hard now, when I retire I'll be very well off financially.
如果我现在努力工作的话，退体后就会很富有。
Which is your bag?
哪个是你的包？
Who could count the times Annie tried, failed, and then succeeded?
谁能数得清安妮尝试、失败直至最后成功的次数？