Ppm.
[医] 兆比率(百万分之几)
🗣️ 情景例句
I don't think anyone would disagree.
我想没人会反对。
You'd better see a doctor about that stomachache.
你胃痛最好去看医生。
My number is 584 1498. Tell him to ask for Bob or Paula. OK? Thanks.
我的号码是5841498。告诉他找鲍勃或葆拉。好吗？谢谢。