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

要说的还很多——我只有时间讲到一点皮毛。

youdao

Consumer robotics products have sold in the millions, yet have only begun to scratch the surface in terms of market penetration.

消费者机器人工学产品，虽然已经销售数百万台，但在市场渗透这点可说是仅仅开始进入整体的极小部分这样的状况。

youdao

The examples above merely scratch the surface on timeouts, which shows how ubiquitous timeouts are in any solution.

上述示例仅仅是触及了超时的表层，展示了所有解决方案中普遍存在的超时。

youdao

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.

所以他们发明了一种分为两叉的工具,把疫苗抹在这种工具表面上,然后以某种方式在皮肤上刮,这样就能将疫苗,重复不断地引入到皮下

耶鲁公开课 - 生物医学工程探索课程节选

But the hugely controversial reorganisation in North Wales didn't even scratch the surface of these changes for their area.

BBC: "Very significant heat in the system"

But, Shannon insisted during that hike, just documenting the malaise in an eight-hundred-word editorial piece couldn't even scratch the surface.

FORBES: What To Do When You Can Do Anything?

And, though much has been done to digitize content, it is impossible to scratch the surface, especially on the budget afforded to libraries today and in times past.

FORBES: Will Public Libraries Become Extinct?