It needs to give the commission explicit authority once and for all to bar broadband providers from meddling in the traffic on their network and to create clear rules protecting openness and innovation online.一、语法结构剖析1、找出谓语动词It needs to give the commission explicit authority once and for all to bar broadband providers from meddling in the traffic on their network and to create clear rules protecting openness and innovation online.2、划出句子结构Itneeds to givethe commissionexplicit authority[once and for all] [to bar broadband providers from meddling in the traffic on their network]and[to create clear rules protecting openness and innovation online].[主干]It needs to give the commission explicit authority“它明确赋予委员会以明确的权力”|--[方式状语]once and for all“一劳永逸地”|--[目的状语1]to bar broadband providers from meddling in the traffic on their network“禁止宽带提供商干预其网络上的数据传输”|--[目的状语2]and to create clear rules protecting openness and innovation online“建立清晰的规则从而保护线上的开放性和创新性”二、词汇含义once and for all 一劳永逸地，彻底地bar sb. from doing sth 禁止某人做某事meddle 干预，查收
