The switch to digital advertising is still in its early stages, and as I see it, Google has only scratched the surface of its potential.
向数字广告的转型仍处于初级阶段，我认为谷歌还只是抓了抓其潜力的皮毛而已。Post-graduates are supposed to be expert in their areas of study, rather than to scratch the surface of their fields.
研究生应该精通自己的专业，而不是对其略知皮毛。They dressed in costumes typically made of animal heads and skins, and they played games of prediction, trying to tell one another fortunes.
人们穿着动物皮毛制的服装，大玩占卜游戏，互相诉说对方的命运。And with those words, the Mother Birch's trunk crashed to the ground - without even scratching one of her daughters.
说完这些话，白桦妈妈的的树干轰然倒地，却没有弄伤女儿们一点皮毛。The bear moves like a silhouette across the landscape, its black fur blending in with the dark rocks and dusky woods.
黑熊的身影穿过这片区域，黑色的皮毛与黑色的岩石和昏暗的树林交融在一起。One of these was a beautiful young doe. She had soft reddish-brown fur, a fluffy white tail and big wide bright eyes.
他们当中有一头漂亮而年轻的母鹿，眼睛大而明亮，一身柔软的红棕色皮毛，还有一条毛线绒的白色尾巴。In this article, the new and noteworthy features have been outlined, but we have barely scratched the surface of this new version of Groovy.
这篇文章列出了Groovy1.5中引人注目的新特性，但是我们仅仅触及了Groovy这个新版本的皮毛。He was dressed all in fur, from his head to his foot.
他从头到脚都穿着皮毛衣服。Therefore, our knowledge of English is in the face of many tests in just a little fur.
因此我们的英语知识在面对重重考试中来说只是一点皮毛。