Mobile phone use among children has become a problem.
孩子们使用手机已经成为一个问题。
Mobile phone used among school kids has become a problem for the school years, so one of the rules in our country says that school kids are not allowed to bring mobile phones to school.
小学生在学校使用手机已经成为一个问题，因此我国有一项规定是，小学生不能把手机带到学校。
Financing schools has become a problem about equal to having an elephant in the living room. It's so big you just can't ignore it.
筹集学费已经像房间里的大象一样，成了一个不容忽视的问题。
Nowadays(overpopulation)has become a problem we have to face.
现今，人口过剩已成为我们不得不面对的问题。
If anger has become a problem in your life, you may want to visit a counsellor.
如果愤怒已经成为你生活中的一个问题，你也许应该去看心理顾问。
However, faced with the many varied products, how to choose has become a problem.
然而面对众多良莠不齐的产品，如何选择却成为一道难题。
And the proper disposal of the materials used to package them has become a problem.
而如何合理地处理快递包装则成为难题。
Controlling the rising of drug costs has become a problem which needed to be solved.
如何控制药品费用的上涨已成为当前迫切需要解决的问题。
At present, the extensive management has become a problem in our conventional industries.
当前，我国传统产业存在着粗放型经营的问题。
It is commonly believed that nowadays, overpopulation has become a problem we have to face.
当今人们普遍认为，人口过剩已经成为了我们不得不面对的问题。
So, to create new model and system of training has become a problem requiring immediate solving.
因此，创建教师培训的新模式，形成教师培训的新体系，也就成为一种亟待解决的问题。
But, in contrast, it is only in modern times that Galileo has become a problem child for historians of science.
但是相比之下，对于科学史家来说，伽利略只是在现代才变成了一个新的难题。
How to ascertain the information of agricultural thin membrane has become a problem that needs to resolve urgently.
如何准确地确定农业薄膜的信息已经成为一个迫切需要解决的问题。
The surplus heat in the inner zone in a building has become a problem not to be ignored in air conditioning designs.
建筑物内区余热已成为空调设计中不容忽视的问题。
In recent years, with frequent incidents of civil engineering construction, safety has become a problem that cannot be ignored.
近年来，随着土木工程施工事故的频频发生，安全已经成为一个不能忽视的问题。
How to deal with the urban and rural relationship properly has become a problem of great theoretical and realistic significance.
如何处理城乡关系，成为一个具有重大理论意义和现实意义的问题。
Psychological health problem of university students has become a problem that students, parents and university are concerned about.
大学生的心理健康问题已成为学生、家长、高校乃至社会普遍关心的问题。
Therefore, research on profit sharing in Dynamic Alliance has become a problem that calls for immediate solution in the management.
因此，动态联盟利益分配问题的研究已成为目前管理学研究中迫切需要解决的问题。
How to evaluate the hotel service quality has become a problem that scholars and enterprises domestic and overseas are eager to solve.
如何利用有效的服务质量评价加强饭店服务质量管理是国内外学者和饭店企业都迫切希望能够解决的问题。
In recent years, power quality disturbances detection and classification has become a problem which attracts the concern in many fields.
近年来，电能质量扰动检测与识别已经成为众多领域普遍关注的问题。
What is happiness? How can we obtain true happiness? This has become a problem that people think deeply about through their entire life.
什么是幸福？如何才能获得真正的幸福？这个问题早已成为人们终其一生不断思索的问题。
How to efficiently use memory resources in FPGA to design high speed embedded processors has become a problem which should be researched.
如何有效地利用FPGA的片内存储资源实现高速的嵌入式处理器成为需要研究的问题。
How to maintain property security and guard management risk has become a problem which the enterprise benefit partners should affront first.
如何维护资产安全、防范经营风险，成为企业利益相关者首先必须面对的问题。
Contradictions often arise among college students as a result of spreading gossip, which has become a problem that an educator must deal with.
大学校园里经常发生因传话导致矛盾，产生纠纷，这是教育工作者面临的一个难题。
Contradictions often arise among college students as a result of spreading gossip, which has become a problem that an educator must deal with.
大学校园里经常发生因传话导致矛盾，产生纠纷，这是教育工作者面临的一个难题。
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