This essay is so short that it can only scratch the surface of the topic.

这篇文章很短,只能对这一问题作肤浅的探讨.

《简明英汉词典》

We cannot even scratch the surface of these disciplines.

我们甚至一点不接触这些学科.

辞典例句

The third is to avoid metal objects scratch the surface of leather.

第三是尽量避免金属物件划伤皮革表层.

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These examples scratch the surface of the problem.

这些例子仅仅反映了问题的很少一部分.

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