D-usnic acid
[化] 右旋地衣酸
🧩 词语组成解析
🗣️ 情景例句
I won't insist, but I think it's in your own best interests to quit smoking.
我不会坚持，但我想戒烟对你自己有好处的。
For a few, scholarships were sources of support.
有少数人，奖学金是他们接受教育的学费来源。
The truck was coming round the corner near the school.
这辆卡车正饶着学校附近的拐弯处驶过来。