By default , both firefox and safari will try to identify known fraudulent sites using public blacklists .

默认情况下，firefox和safari都会利用自己的黑名单来识别那些已知的欺诈网站。

Most spam filtering involves blacklists in which email from addresses on the list is rejected or filtered .

大多数垃圾邮件过滤涉及到黑名单，来自该名单上的地址的电子邮件将被拒绝或过滤掉。

Blacklists are used to combat spam in a very specific way .

黑名单是用来对付垃圾邮件是很具体途径.

Second , browsers could offer tools that resemble ad blockers or spam blacklists that would allow non-expert users to avoid connections to illegitimate sites that seem to have been validated .

第二，浏览器可以提供允许非专业使用者避免连接到似乎已批准的非法站点的类似广告阻拦者们或者垃圾邮件黑名单的工具。

But whereas robeson 's activism ran headlong into early cold-war paranoia , blacklists and mccarthyism , mr belafonte was luckier : his career rose more or less in tandem with the american civil-rights movement .

然而，尽管robeson的激进主义使他盲目崇尚早期冷战偏执、黑名单、以及麦卡锡主义，belafonte则更幸运：他事业的成就或多或少与他参与美国人权运动有关。