It was small, about the size of your thumb. It was a stone, heart-shaped, or I should say, valentine-shaped.

我伸手接过那条“线索”，那是一块心形，或者该说是爱心型的石头，不比你的拇指大多少。

youdao

There was a purple mark on it that looked like four small fingers and a little thumb.

VOA: special.2009.05.30

People differ to the extent it will hurt them to watch me slam my thumb with a hammer.

不同的人看到我用锤子打拇指,会感受到不同程度的痛苦。

耶鲁公开课 - 心理学导论课程节选

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

So when the atmosphere cools down one part of the globe, it is a good rule of thumb that it is warming some other part.

ECONOMIST: Britain��s cold snap is explained by the Arctic oscillation

Hold one of your hands up, palm out, and cross your thumb over it.

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"With a spinal injury, the rule of thumb is it takes about two years to have some idea how the fullness of the recovery is, " Levine said.

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