Could I use your phone, please?

请让我用一下你的电话可以吗？

《牛津词典》

Might I use your phone?

我可以用一下你的电话吗？

《牛津词典》

Could I use your phone to call a cab?

我能用你的电话叫一辆出租车吗？

《柯林斯英汉双解大词典》

You must have let your phone dieor something. I'm not in Forks, but everything's okay,and I'll explain it later.

VOA: standard.other

and you top up your phone and you know, whatever it is.

给电话卡充值，无论什么事。

生活费很高 - SpeakingMax英语口语达人

If your cell phone goes off during an exam, I come up there. I grab your paper, I tear it in half, and I give you a zero.

如果你的手机在考试时响起的话，我会上前，将你的卷子拿过来，撕成两半，给你零分。

麻省理工公开课 - 固态化学导论课程节选

Leave your phone wide open and, yeah, sooner or later something bad is probably going to be open.

ENGADGET: blogger-avatar

"People behind you are like 'put your phone down we can't see', " says one female fan.

BBC: Should music fans stop filming gigs on their smartphones?

When the pill hits your stomach, it transmits to your phone that you took the pill.

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