B-complex vitamin
【生物化学】维生素 B 复合物[亦作 vitamin B complex]
🧩 词语组成解析
🗣️ 情景例句
I hope you won't take offense if I ask you not to smoke.
如果我请不你要吸烟，希望你不要生气。
First, I would like to express to all of you here our sincere welcome.
首先，我向在坐的诸位表示诚挚的欢迎。
When he began to play a tune, we had our first glimpse of the snake.
当他开始吹奏一支曲子时，我们才第一次看到那条蛇。