Each ' fingertip ' is somewhat larger than our own solar system .

其中每个“指尖”都比我们自己的太阳系略大一些。

Curtin did a few fingertip pull-ups .

curtin用手指做了几个引体向上。

David seem to get the whole business at his fingertip .

大卫似乎对整个事件了如指掌。

But then I saw that he had a bit of black powder on his fingertip .

不过，接着我就看见他指尖上有一撮黑色粉末。

A human fingertip can sometimes grow back and cuts often heal with minimal scarring .

人类的指尖有时可以重新生长出来，而且伤口能愈合成微小的伤疤。