Wind the dangling floss around the middle finger of the other hand.

将悬挂着的牙线缠绕在另一只手的中指上。

youdao

Do not stick your index finger and middle finger up with the palm of your hand facing towards you in the United Kingdom; it is the equivalent of giving someone the finger.

在英国，不要在手掌面向自己时竖起食指和中指；这无异于直接对别人竖中指(在西方社会一种非常不礼貌的行为)。

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Start by holding a small amount of the cable with your thumb and/or middle finger. Then, with your other hand, begin wrapping the cable in a figure-8 between your pinky and index fingers.

开始先用拇指和中指捏一段线在手里，然后，用另一只手把线绕在食指和小拇指上，成8字形。

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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。

哈佛公开课 - 幸福课课程节选

Middle finger exactly and your thumb.

中指和姆指。

哈佛公开课 - 幸福课课程节选

So-- if you don't feel comfortable doing it, don't do it-- what I'd like to do now is as following: Take your thumb and your middle finger and create as much as possible a 90 degree angle.

感觉不舒服的，就不要做，希望按下面的指示做：,让你的姆指和中指,尽可能形成一个直角。

哈佛公开课 - 幸福课课程节选

On a recent February afternoon, horns honked and a middle finger flew as Cabral walked the traffic island.

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He underwent surgery last December to repair a ruptured ligament in the middle finger of his right hand.

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With the case of the thumbs up or the raised middle finger, the gestures are taking the place of verbal communication.

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