Crippling health care bills, long emergency-room waits and the inability to find a primary care physician just scratch the surface of the problems that patients face daily.

高昂的医疗费用、急诊室里漫长的等待，以及找不到初级护理医师，这些都只是患者每天面临的问题的冰山一角。

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To make an investigation one, should go into matters deeply, not just scratch the surface.

做调查工作不能蜻蜓点水， 要深入实际。

《新英汉大辞典》

These problems just scratch the surface.

这些问题只是涉及到表面。

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There is a scratch panel - just like a lottery ticket with number on the drug - each drug has a different number.

VOA: standard.2010.06.07

Scratch And after just a few words on Scratch which we'll look at in more detail on Friday will you actually feel that you know what, this is actually very intuitive.

现在先粗略介绍一下,周五我们会更详细地讲,你会感觉到这其实是很直观的。

哈佛公开课 - 计算机科学课程节选

All we're going to do here is really just, once again, scratch the surface.

我们在这里只是，肤浅地解析一下。

耶鲁公开课 - 死亡课程节选

If you just scratch the surface of the city that might be all you see, but don't forget Los Angeles is home to an enormously creative population.

CNN: New York vs. Los Angeles: L.A. is a 'heavenly place'

"I'd like to think that I would do it just like I would scratch if I had an itch, " says Louis-Dreyfus.

FORBES: Why not a sonnet?

"If I did run again, it would be on the basis of just starting over from scratch and not taking anything for granted, " Gore says.

NPR: Al Gore Takes on Al Gore �� and George W. Bush