That's only if you know 那是只有你知道的
If you get your page validating, and then it stops validating, you know you've got a change that's not only not been checked, but may really screw up the structure and even presentation of your site.
如果您对页面进行验证，然后它停止验证，那么您就会知道所做的更改确实破坏了站点的结构，甚至表示。
That's going to skyrocket your profit target only if you know how to use the best method of getting free publicity.
这将非常艰巨，你的利润目标，只有当你知道如何使用最好的方法获得免费宣传。
Even if you only know the refrains of your favourite songs, that's enough for you to learn hundreds of foreign-language words and phrases.
即使你只知道你最爱的那些歌曲的副歌部分，那也足够让你学到上百个外语单词和词组了。
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