Pellagramin
[医] 烟酸
🗣️ 情景例句
What kind of job do you have?
你做什么工作？
I'm catching the 11:00 train.
我准备赶11点火车。
Today, enough soundings are available to enable a relief map of the Atlantic to be drawn
现在已有足够的水深测量数据来绘制一张大西洋洋底地形图，