B complex
复合维生素b
🧩 词语组成解析
🗣️ 情景例句
Subway transportation is very advanced in Longdon.
伦敦地地铁非常先进。
I learned grammar this afternoon.
我今天下午学语法。
The tree was planted near the church fifty years ago, but it is only in recent years that it has gained an evil reputation.
该树是50年前栽在教堂附近的，但只是近几年才得到了一个坏名声。