It's very convenient to use the bikes if you have a smart phone.

如果你有智能手机，骑自行车就非常方便。

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It's easy and convenient to use a computer. But it takes a long time to really master it.

使用电脑很容易，也很方便，但要真正掌握它就需要时间了。

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The technologies have been around for years, but only in the last year or so they've become even halfway convenient to use.

这些技术实际上已经存在多年，但直到去年它们才差不多能够方便地被使用。

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Apps have stolen some thunder from browsers, especially as consumers find apps faster and more convenient to use than the Web.

WSJ: Web Browsers Are Reinvented

AstraZeneca, Amgen and others are racing furiously to test Erbitux-like drugs that are more convenient to use and have fewer side effects.

FORBES: Erbitux: Nothing Special

We've been using a previous version of the software, version 5.0, for some time, and have found it rather convenient to use.

FORBES: Magazine Article