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