These examples just scratch the surface of the problem.

这些例子仅仅反映了问题的很少一部分。

Even genuinely well-meaning policies barely scratch the surface.

即便完全善意的政策也从未真正涉及到这一问题。

The famine is so bad, aid can only scratch the surface.

饥荒十分严重, 援助也只是杯水车薪.

Cleaning powder and brush may scratch the surface of the product.

请勿使用硬刷子，或磨沙粉， 以免刮损本产品。

We don't have much yet because we've just started to scratch the surface.

在我们今天要学的最后一个习惯用语里， scratch回到了它的原意。 就是“刨括表面”。

There's far more to be said - I've only had time to scratch the surface in this talk.

要说的东西很要很多。这次讲话时间有限，我只是触及了事情的表面。

To talk about climate change, renewable energy or staycations is merely to scratch the surface of something much deeper.

我们谈论着气候变化，可再生能源和宅度假，而这只抓住了深层信息表面上的一些皮毛。

Scratch the surface of China's impressive metrics, such as patent filing data, and there is often less genuine innovation there than meets the eye.

揭开中国令人瞩目的数据（比如专利申报数据）表面后，真正的创新常常比人们看到的要少。

Whole atoms, the NIST researchers say, are so much more complex than electrons that the promising possibilities of spintronics only scratch the surface of what's potentially possible.

美国国家标准与技术研究所的研究者认为，原子的构造远远比电子复杂，其复杂程度超出我们想象，我们现在认为前景光明的自旋电子学其实只不过触到了原子学的皮毛而已。