Usninic acid
[化] 地衣酸
🧩 词语组成解析
🗣️ 情景例句
I see you're in a good mood.
我看你心情很好。
Law makers should not be law breakers.
正人先正己。
Most of North and South China will have a cold wet day.
华北、华南大部分地区将寒冷潮湿。