be pleasant to the eye but of no use ; All is not gold that glitters. ; Cheap and nasty
中看不中用的 trumpery
中看不中用的东西 white elephant ; trumpery
This ware is suitable for decorative purpose but unsuitable for utility.
这种器皿中看不中用。
《新英汉大辞典》
然而，很明显，金融系统也是中看不中用。
But it is also clear that the financial system is less sound than it seemed.
youdao
结果发现他昨天买来的沙发中看不中用。
The sofa he bought yesterday was found to be an apple of Sodom.
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