Ppm.
[医] 兆比率(百万分之几)
🗣️ 情景例句
Is this where I claim parcels?
这里是领包裹的地方吗？
Will it be convenient for you to explain your plans to him?
你向他解释计划将是方便的吗？
As soon as I went outside, I forgot all about Madam Bellinsky because my wife hurried towards me.
我一走出帐篷，就把别林斯基夫人给算卦的事忘得一干二净了，因为我的妻子正匆匆向我跑来。