wrist bone造句怎么写

Anchiornis's wrist bone was so wedge-shaped that it could fold its arms to its sides, keeping its arm feathers off the ground as it walked.

Wrist circumference was calculated using a cloth tape measure, and 51 of the children also underwent imaging tests to precisely measure wrist bone vs. wrist fat.

This posture leaves the front paws free to grasp bamboo stems with the help of a "pseudo thumb," formed by an elongated and enlarged wrist bone covered with a fleshy pad of skin.