Although having varied supply mode, there still exist problems of insufficient quantity and unreasonable supply structure.

我国城市准公共物品的供给方式已多样化，但仍存在总量供给不足和供给结构不合理等现象。

youdao

There exist problems with the rate of renewal and reuse, over packing, under-developed and unbalanced packing industry, and packing safety.

我国目前的包装现状不能令人满意，突出表现在回收利用率低、过度包装、包装工业落后而且不平衡、包装安全存在问题等方面。

youdao

The explosive accident of the underground gasoline pipeline occurred in Guigang Petroleum Branch revealed to us that there exist problems in the safety work.

贵港分公司发生的埋地汽油管线爆炸事故，暴露出在安全管理工作上存在的问题。

youdao

"The same problems exist in developing countries, but the institutional development of regulatory agencies lag behind.

VOA: standard.2010.02.22

"We have not shied away from raising the difficult problems that exist and stand in the way of the people of Africa realizing their potential.

VOA: standard.2009.08.16

Although worries about cardiac problems may have hurt prescription growth, not everyone believes such problems exist.

FORBES: Magazine Article

Synaptics scientist David Gillespie says "mushy and imprecise" problems exist that microprocessors have difficulty solving.

FORBES: Touchy Touchy

Those same problems exist in our current democratic process and its marketplace of ideas.

FORBES: President Obama's Re-Election Is Powerful Evidence Of Democracy Failure