R acid
[化] R酸; 2-萘酚-3,6-二磺酸
🧩 词语组成解析
🗣️ 情景例句
You're working pretty hard these days.
你这阵子工作得很辛苦呀。
If you're not happy, say it!
不高兴就说啊！
When she got to the shop, she bought all the things on the list.
去到商店后，她把单上所列物品全都买了。