evolutionarily-conserved是什么意思

evolutionarily-conserved是什么意思 求大神将我给的几个句子深化一下,或者给高级一点的句子,一直能套用的.英语作文用的.示例：There is no doubt that ……的句型深化后：There is no doubt that it is of vital importance for people to reach a conse 英语翻译Because the prevalence figures yielded by retrospective surveys are so much a function of how abuse and childhood are defined,the precise statistics are of less interest than the fact that even the most conse rvative estimates show that s