Fluoprotactinic acid
[化] 氟镤酸; 氢氟镤酸
🧩 词语组成解析
🗣️ 情景例句
I have been a secretary in an insurance company.
我一直在一家保险公司担任秘书工作。
At 6 o'clock sharp.
6点。
Although mankind has undergone no general improvement in intelligence or morality, it has made extraordinary progress in the accumulation of knowledge.
虽然人类有智力和道德上没有得到普遍提高，但在知识积累方面却取得了巨大的进步。