B complex
复合维生素b
🧩 词语组成解析
🗣️ 情景例句
and I have a production meeting at four.
我四点钟有个生产会议。
If you wish good advice, consult an old man.
如要忠告向老人请教。
Uncle Wang was waiting for them outside the factory gate.
王大叔在工厂大门外等他们。