We shouldn't watch mobile phones for a long time

长时间───long-term;手机───mobile phone

It is a cosmetic measure which will do nothing to help the situation long term.───这项举措只是表面文章，长期来看对于改善情况不会有任何帮助。

Long-term prospects for the economy have improved.───长期的经济前景已有所改善。

You need to set yourself some long-term goals.───你得为自己订一些长期目标。

They suffer from health problems and fear the long term effects of radiation.───他们遭受着健康问题的困扰并且害怕辐射的长期影响。

Businesses will have to aim at long-term growth.───企业必须以长期增长为目标。

The agreement should have very positive results in the long term.───从长远来看，这个协议将会产生非常积极的影响。