Pee and sweat for example both contain urea, a molecule with two ammonia like parts.

例如， 尿液和汗液都含有尿素，这是一种含有两个类似氨的部分的分子。

Another cause of pericarditis, called uremic pericarditis, is when blood levels of urea, a nitrogen waste product, get really high usually due to kidney problems.

另一个病因是尿毒症性心包炎，由肾脏疾病引发尿素（血浆含氮代谢产物）水平升高导致。

But in 1828, a German chemist named Friedrich Wohler showed otherwise when he synthesized urea, a substance found in both sweat and urine — hence the name.

但是在 1828 年，一位名叫弗里德里希·沃勒的德国化学家在合成尿素时发现了不同的情况，尿素是一种在汗液和尿液中都有的物质——因此得名。