Niconacid
烟酸
🗣️ 情景例句
A guarantor is responsible for the loan
担保人要对贷款负责
This month all of my law clients paid their bills.
这个月前来做法律咨询的客户全都付清账单了。
There was also a great deal of machinery on display.
参展的还有很多机器，