The way he strokes his index finger against his lower lip?

是用轻下嘴唇的方式吗？

Lucius froze, his index finger hovering over his own Mark.

卢修斯一下子僵住了，他的停留在黑魔法标记上。

So you put your index to your thumb on both sides.

把两侧和拇捏在一起。

It's basically a little bit longer than my index finger.

基本上就比我的长一点。

Squeeze my thumb and finger to make it stop.

用拇和挤住它停下来。

She uses a thumb or forefinger to hold one nostril closed at a time.

她每次用拇或捂住一个孔。

Keep the thumbs and forefingers of both hands together.

双手的大拇和分别靠在一起。

Then pinch your index finger and thumb together to select it.

然后捏住你的和拇来选择它。

The only way to protect yourself from the Cheese Touch is to cross your fingers.

保护自己免受“奶酪附体”的唯一办法，就是搭在中上作十字架状。

Put your thumb here and your index finger here.

把你的大拇放在这里，放这里。

When I touch the soil with my index finger it feels a little bit dry.

当我用摸土壤时，感觉有点干。

Index, middle and ring fingernails grow fastest.

、中和无名的甲长得最快。

Fred was holding a struggling Doxy between his forefinger and thumb.

弗雷德的和拇之间抓着一只正在挣扎的虫子。

" Exactly! " said Xenophilius, his forefinger raised pedantically.

“正确！”，谢农费里厄斯，斯文地竖起。

I took it up between my finger and thumb.

我用拇和把它拔了出来。

" Just know this, " he said, gesturing with a pointed finger for emphasis.

“但请你记住，”普莱斯边说边伸出强调。

Take one of your index fingers and hold it in front of your eyes.

把你的一根放在你的眼前。

Develops a pincer grasp (using the thumb and index finger) .

发展钳形抓握（使用拇和）。

He pressed his long white forefinger to the brand on Wormtail's arm.

他把长长的、苍白的按在虫尾巴的胳膊上。

Index fingers pointing towards the front edge of the mat.

向瑜伽垫前部边缘。