ectocuneiform bone

例句：

1. 1. The ectocuneiform bone is the largest and strongestin the body.
   脊椎骨是身体中最大的、最强壮的骨头。
2. 2. The ectocuneiform bone is responsible forsupporting the weight of the body.
   脊椎骨负责支撑身体的重量。
3. 3. The ectocuneiform bone is also important for maintaininggood posture.
   脊椎骨对于保持良好的姿势也非常重要。