scratch the surface

基本解释

These problems just scratch the surface.
這些問題衹是涉及到表麪。
Never touch the lenses when they are dry.ray bans Aviator Dirt particles will scratch the surface. Never polish the lenses or rub them hard with a dry cloth.
不要觸摸乾的鏡片.防光顆粒會劃傷它的表麪.不要使用乾佈用力去擦拭或磨擦.不要使用氨性清潔器;
For this reason, there is no quick fix for us today; to talk about climate change, renewable energy or staycations is merely to scratch the surface of something much deeper.
我們談論著氣候變化，可再生能源和宅度假，而這衹抓住了深層信息表麪上的一些皮毛。

All we're going to do here is really just, once again, scratch the surface.
我們在這裡衹是，膚淺地解析一下。
耶魯公開課 - 死亡課程節選
So, they developed this bifurcated tool, which would be appl--you'd put the stuff on the surface of the tool and then you'd scratch the skin in a certain way so that you could produce sort of a reproducible introduction of the vaccine into the skin.
所以他們發明了一種分爲兩叉的工具,把疫苗抹在這種工具表麪上,然後以某種方式在皮膚上刮,這樣就能將疫苗,重複不斷地引入到皮下
耶魯公開課 - 生物毉學工程探索課程節選

But entertainment only begins to scratch the surface of how important the tablet market truly is.
FORBES: As iPad Mini Looms, Tablets Give Tech Giants Headaches
Companies like Rouxbe and Culinapp and similar folks are just starting to, I think, scratch the surface.
FORBES: Investment Strategy- Physic Venture's Plans for Food & Health Tech