Pivalaledhyde
新戊醛
🗣️ 情景例句
I'm concerned.
我很担心。
I can't imagine that anyone cares about what I do.
我想不出谁会关心我的所做所为。
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。