Isovaleric acid smells kind of like cheese, and it's the same chemical that makes your sweaty feet smell.

异戊酸闻起来像奶酪，它也是让你有臭脚味的化学物质。

I remember the harsh acid smell of the cleaning solution, and the scraping sound of stiff iron brushes against rough brick.

我记得清洁溶液的刺鼻酸味，以及坚硬的铁刷刮擦粗糙砖块的声音。

Things like long chain amines have a fishy or rotten smell, and some people say that long chain carboxylic acids smell like goats.

长链胺之类的东西有腥味或腐臭味，有人说长链羧酸闻起来像山羊。