You have to learn to use them and practice it.

你必须要学着使用并不断练习。

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Quick Tip 1: Memorize the most important Google operators and learn to use them efficiently.

窍门1：记住最重要的Google operators，学习如何有效的使用它。

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Let these pains become stepping stones to better things in life, and learn to use them to make you stronger.

让这些痛苦成为你通向更美好生活的垫脚石，并学会利用它们让自己更坚强。

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"Rather than try to bring a lot of infrastructure to them and expect them to learn how to use the Internet, the idea was to make a technology that even Grandma could use, figuring that Grandma could probably walk up to a box and push a button."

VOA: special.2009.10.12

Tools in Frost are tricky. You have to learn how to use them.

弗罗斯特所指的工具很狡猾，要去学会分析。

耶鲁公开课 - 现代诗歌课程节选

Fortunately, there are electronic solutions to this, provided that a parent is willing and able to learn to use them.

FORBES: Wake-Up Call: Mom's Trip To The Emergency Room

And all the neat multi-touch gestures could end up being helpful once we learn how to use them.

FORBES: Hands On With The Apple Magic Trackpad: It's Weird, But Could Be Useful

They should learn how to use them, and be prepared to use them in defense of their lives and those of their loved ones.

FORBES: To Protect The Innocent, We Need More Guns In The Hands Of Honest People