1. The metathorax is the third segment of an insect's thorax, located behind the mesothorax.
跳脚下段是昆虫胸部的第三节，位于中胸部后面。

2. The metathorax is typically smaller than the mesothorax in most insects.
在大多数昆虫中，跳脚下段通常比中胸部要小。

3. The metathorax plays a role in the movement and coordination of an insect's hind legs.
跳脚下段在昆虫后腿的运动和协调中扮演着重要角色。

4. Insects use their metathorax to generate power for jumping and flying.
昆虫利用跳脚下段产生力量进行跳跃和飞行。

5. The metathorax is connected to the abdomen through the petiole in some insect species.
在某些昆虫物种中，跳脚下段通过腹柄与腹部相连。

6. Damage to the metathorax can severely impact an insect's ability to move and function properly.
跳脚下段的损伤会严重影响昆虫的移动和正常功能。