R acid
[化] R酸; 2-萘酚-3,6-二磺酸
🧩 词语组成解析
🗣️ 情景例句
Three. Besides Chinese, my mother tongue, I can also speak English and French.
三种，除了我的母语中文外，我还会讲英语和法语。
He can't dress himself yet because he's too young.
他还不能给他自己穿衣服因为他是太年轻的。
She is going to set out from the French coast at five o'clock in the morning.
她打算早上5点钟从法国海岸出发。