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
Here it is.
在这儿。
Learn wisdom by the follies of others.
要从别人的愚行中学到聪明。
Spiders are busy for at least half the year in killing insects.
蜘蛛至少有半年在忙于吃昆虫。