他用粗短的手指指了指他对面的一把木椅。

He pointed a stubby finger at a wooden chair opposite him.

《柯林斯英汉双解大词典》

她突然举起一根瘦小的手指指向房间的另一头。

She suddenly held up a small, bony finger and pointed across the room.

《柯林斯英汉双解大词典》

一个手指指节是四厘米长。

Just say that a finger is 4 centimeters long.

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Now take these two fingers-- the middle finger and the thumb-- and as much as possible, from that 90 degree angle, create a circle.

再让这两个手指-,中指和姆指-,尽可能保持直角时围成一个圆圈。

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