Pfeiffer's substance
[化] 普法伊费尔化合物
🧩 词语组成解析
🗣️ 情景例句
one of the most important syndicated reviewers in the country.
我国最重要的报团评论家之一。
The post office is in the middle of the block, You can't miss it.
那邮局就在街区的中间，很好找。
Yes, Mum.
好的，妈妈。