R acid
[化] R酸; 2-萘酚-3,6-二磺酸
🧩 词语组成解析
🗣️ 情景例句
What currency do they use in U.S.A.?
在美国人们用什么货币？
It was not until the accident happened that I became aware of my own foolishness.
直到事故发生我才意识到我自己的愚蠢。
We can give you a better one at thesame price.
我们可以给你更好的一种，价钱一样。