brachyural

例句：

1. 1. The spider has a short body and long legs.
   这只蜘蛛身体短小，腿却很长。
2. 2.The brachiopod shell is a common fossil found in many marine environments.
   腕足类壳是一种在许多海洋环境中常见的化石。
3. 3. The brachiate limbs are used for locomotion and manipulation of objects.
   短肢用于移动和操纵物体。