Warm milk is the ideal breeding ground for bacteria.

温牛奶是细菌理想的繁殖地。

This area of the city has become a breeding ground for violent crime.

这个市区已成为暴力犯罪的滋生地。

It's tempting to leave your cleaning implement—a damp rag or sponge—hanging around to use the next day, but that could create a germ breeding ground.

把你的清洁工具——一块湿抹布或海绵——悬挂起来留到第二天使用是很诱人的，不过那样也会使它们成为细菌的滋生地。

Dirty hands can be a breeding ground for germs.

脏手会滋生病菌。

Flaws in the system have created a breeding ground for financial scandals.

制度中的漏洞给金融丑闻的滋生提供了土壤。