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
She cheated on the examination.
她考试作弊。
Whose responsibility are the shipment charges?
运费由谁来负责呢？
My mouth is watering.
我要流口水了。