Severing certain relationships can set into motion a series of extinctions that ultimately might endanger our own survival as a species.这句话的意思大概明白,但是sevring是什么意思?By what standard,then,should we decide...这个是倒

Severing certain relationships can set into motion a series of extinctions that ultimately might endanger our own survival as a species.这句话的意思大概明白,但是sevring是什么意思?By what standard,then,should we decide...这个是倒 certain certain certain rel是什么意思啊 谢谢 1中rel是什么意思? 这个rel=0是什么意思? 看英文的解释填入单词 如some,an amount of something :(certain)要填的词：useful useless careful careless thoughtful thoughtless helpful helpless restful restless1.having no purpose:( )2.thinking of othes:( )3.moving around a lot:not rel link rel=stylesheet href=mycss. certain意思 a certain Certain是什么意思? on certain certain days 钢筋物理性能检测报告Rmº/ReLº什么意思 just missed a certain date certain 英语翻译用certain造句 know for certain是什么意思?