知道怎样正确地使用手机是非常重要的 用英语怎么说

知道怎样正确地使用手机是非常重要的 用英语怎么说

It's very important for us to know that how to use cellphone properly

It's really important that to know how to use the cell phone.

It is an of importance thing to know how to use your phone correctly.

It is especially important to understand how to use the mobile phone .

It is important to know how to use cell phone correctly. it 是形式主语，to know how to use cell phone correctly这个不定式引导的名词性短语才是真正的主语。 Knowing how to use cell phone correctly is very important. 这个表述也可以，但是英语里在主语过长的情况下，为了保持句子的平衡常常会用到形式主语it。

how to right use moblie phone? it is well known that mobile phone has deeply rooted in people's daily life. we heavily depend on the mobile phone all-round from the morning wake-up alarm through daily commnication with friends, co-workers and customers, surfing on internet, looking up new words, reading electric books, booking tickets, listening to songs, watching movies, play games, even navigating when drive a car, to a soothing music helping us to fall asleep. so, what an intimate company the mobile phone is. it takes up most of our effective active time, attention and mind to fix on such a small screen. even we are bored, we would like to look mobile phone for the comfort. the key role of mobile phone at present is just like one of the essentials, such as food, water and air in our life. in order to effectively arrange time in study, work and entertainment, the role of mobile phone is just a tool to assist us should be always kept in mind. as there are too much interesting information which can be easily reached through a mobile phone, our attention and curiosity is inextricably drawn to it. 剩下的等我回来再写吧