Ppb

[化] 十亿分率

🗣️ 情景例句

I care about the practical things.
我关心实用的事物。
She knew that a vocation this year was out of the question.
她知道今年不可能有假期。
What's up?
有什么事吗？
更多情景英语 ›

🔤 更多 P 开头的单词

pancreaticohepatic syndrome
patronized
pelvic blotch
photosensitized
pierides
pollyfish
power dissipation rating
printing shop
全部 P 开头单词 ›