B-vitamins
B族维生素
🧩 词语组成解析
n. 维生素（ vitamin的复数形式 ）
🗣️ 情景例句
Bye.
再见。
He doesn't like to talk about political matters.
他不喜欢谈政治的事情。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时