Naotin
烟酸钠
🗣️ 情景例句
IN this respect, French differs from English.
在这方面，法语不同于英语。
Whoever said that is a liar.
无论谁说的，都是谎言。
This is a kind of printing that blind people can read by touching groups of raised points that are printed on paper.
布莱叶盲文是一种印刷字体，盲人通过摸印在纸上起的点点来读书。