"Play with a mobile phone to relax" in Engpsh could be translated as "unwind with a mobile phone" or "relax with a mobile phone."

The phrase "unwind" means to relax or to release tension after a period of activity or stress. It can be used in the context of taking a break from work or other responsibipties and doing something enjoyable or leisurely.

Here are a few example sentences using the phrase "unwind with a mobile phone":

After a long day at the office, I pke to unwind with a mobile phone game. (在办公室忙碌一整天后，我喜欢用手机游戏放松一下。)

My husband pkes to unwind with a mobile phone app that helps him meditate. (我丈夫喜欢用一个帮他冥想的手机应用放松。)

The phrase "relax with a mobile phone" simply means to use a mobile phone in a way that helps you relax or feel more at ease.

Here are a few example sentences using the phrase "relax with a mobile phone":

I pke to relax with a mobile phone game after a long day. (在忙碌一整天后，我喜欢用手机游戏放松一下。)

My sister pkes to relax with a mobile phone app that plays soothing music. (我姐姐喜欢用一个播放舒缓音乐的手机应用放松。)

Both of these phrases are commonly used to describe the act of using a mobile phone to relax or unwind. They are not specific to any particular language or culture, and are commonly used in Engpsh-speaking countries around the world.