人类的拇指与其他四指对置。
手：指臂的末端，由腕关节、手掌、拇指和手指构成。
Hand: End part of the arm, consisting of the wrist joint, palm, thumb, and fingers.
人类的拇指与其他四指并置。
然而拇指距离第四指和第五指多远才是最理想的呢？
However what is ideal for the thumb is way off for the fourth or fifth finger .
食指与拇指相邻；无名指是拇指数过去的第三个。
The index finger is the one next to the thumb; the ring finger is third from the thumb.
那是指你拇指和食指能捏起的盐的数量。
It is the amount of salt you can pick up between your thumb and your index finger.
那是指你拇指和食指能捏起的盐的数量。
It is the amount of salt you can pick up between your thumb and your index finger.
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