有一个是给你手机用的，但是不怎么好用。

There is a version for your phone, but it's not essential.

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用户只需按几个手机用键便可以播放这种驱蚊声波。

Customers can then play the sound by hitting a few buttons on their mobile phones.

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但这款充电靴有一个问题：你需要行走12个小时，才能提供可供手机用一小时的电量。

You need to walk for 12 hours in the boots to generate one hour's worth of charge.

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She's driving, and she's talking on the cell phone, and looking at the photographer.

她在开车，在用手机打电话，并且在看着摄影师。

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So it's convenient if you wanna check and see when the next bus is coming.

用手机可以查下一趟车什么时候来，非常方便。

没有智能手机活不了 - SpeakingMax英语口语达人

They realized, "Wait a minute. People are carrying music on their phones now.

他们意思到，“等等，人们,在用手机听音乐了。

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