Ppb

[化] 十亿分率

🗣️ 情景例句

I'd better unpack.
我还是先把行李打开吧。
That nation is famous for its tourism.
那个国家以旅游业闻名。
Yes, it was a very good match.
是啊，是场好球。
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🔤 更多 P 开头的单词

para red
pay back
personalises
phosphomolybdate method
planetal
plicae genitalis
possible capacity
procedure input
全部 P 开头单词 ›