模塑聚苯板密度:what has four legs but cannot walk

What table has no leg? What has four legs,but one foot? what has four legs but cannot walk what has four legs but cannot walk? What has a body and a neck but no leg? What has four legs(腿) and only one foot(脚)？ what has four legs and only one foot? What has four legs and only one foot ? What has four legs and only one foot ? 想一想，答一答what has a body and a neck no leg?