Naotin
烟酸钠
🗣️ 情景例句
We're just having some cola
我们只是先喝点可乐
They imagine, what he is doing.
她们在猜他所做的事。
There had been fuel on the ship, but this did not appear to have caused the fire, and little smoke was produced.
很显然，船舱里已经发生了一场烈火，但是船舱内壁却完好无损。船上存放着汽油，但火灾似乎不是它引起的，因为没有冒出什么烟来。