A plethora of tips are available on presenting designs and public speaking .

在阐述设计或是公开演讲时收到过多的建议也是有利的。

Out of that plethora of data fell the human brain 's synchronous background hum .

排除过多数据会降低人类脑部同步到达的电磁波。

Meanwhile , regional co-operation has spawned a plethora of new security forums and organisations .

同时，地区间合作导致大量过剩的新安全论坛和组织出现。

Already , there is a plethora of start-ups offering to help businesses cut greenhouse gases .

目前已经出现很多项为企业削减温室气体排放过多问题而提供帮助的启动计划。

One reason for the plethora of challengers is that mr bercow lacks support within his own party .

有过多竞争者的原因之一是：波尔考先生缺乏他自己党派人的支持。