hotbed

详细解释:n. 温床

英语解释：

名词 hotbed:

a situation that is ideal for rapid development (especially of something bad)a bed of earth covered with glass and heated by rotting manure to promote the growth of plants

详细解释：

hot.bed

n.（名词）
An environment conducive to vigorous growth or development, especially of something undesirable:
犯罪的温床：（尤指）有利于令人憎恶的事物迅速滋生或发展的环境：
例句：
a hotbed of intrigue.
阴谋的温床

A glass-covered bed of soil heated with fermenting manure or by electricity, used for the germination of seeds or for protecting tender plants.
温床：有草覆盖的土层，通过发酵肥料或通电加热，用于种子的发芽或保护植物幼苗