hidden worries

基本解释

But, besides worries about hidden bad loans held by savings banks, investors see lack of growth as the main problem.
然而，投资者们除了担心储蓄银行持有的潜在不良贷款外，经济缺乏增长是一个主要问题。
Although the hydropower development in China has witnessed some positive trends, there still exist some large hidden worries.
尽管我国水电开发形势好转，但存在巨大隐忧。
It must be noted that for China-EU relations, there are still some problems or hidden worries. If not properly handled, they may have a negative impact on China-EU relations.
必须看到，中欧关系中还存在一些问题或隐忧，如不及时加以妥善处理，可能会对中欧关系产生消极影响。

隐忧
At last, the hidden worries under the prosperity of column plays are proposed to remind the creators to deal with these problems.
最后，居安思危，提示在当前栏目剧一片火热状况下的隐忧，希望栏目剧创作者能清醒应对。