What's that fishy smell?

那是什么腥味？

《牛津词典》

Trimethylamine is the chemical that produces the 'fishy' smell we all recognise.

三甲胺是产生我们都能闻得出来的那股腥味的化学物质。

youdao

You're hit by a fishy smell when you walk in, and you quickly see why: Jacuzzi-sized tanks, filled with tilapia.

你一跨入实验室就会闻到浓烈的鱼腥味，你肯定会快速环顾四周：噢！浴缸大小的鱼缸里，满是罗非鱼。

youdao