Platnum
(=Platnam)普拉特南耐蚀阀座合金, 普拉特纳姆镍铜合金
🗣️ 情景例句
Ellen, why don't you go out to the backyard
Ellen，何不去院子
The devil is good when he is pleased.
魔鬼高兴，也发善心。
In a few years the small workshop had become a large factory which employed seven hundred and twenty-eight people.
几年之后，小铺子已经发展成了一个雇有728人的大工厂。