Phenylethylhydrazine
[医] 苯乙肼
🗣️ 情景例句
and how hard it is
他还说这件事很难
Take time for deliberation; hste spoils everything.
要费时思考，急躁会坏事。
The remains of plants and animals that lived on land are much more rarely preserved, for there is seldom anything to cover them over.
曾在陆地上生活过的动植物的遗体被保存下来的更为罕见，因为陆地上几乎没有什么东西覆盖它们。