Xanthinol niacinate
[化] 占替诺烟酸盐; 烟胺羟丙茶碱
🗣️ 情景例句
Tom's about to open the doors. Tom
准备要开门了。
How long will you remain there?
你将会在那里逗留多久？
Why do you keep asking me the same question?
你怎么又问我同样的问题？