四足

例句：

1. 1. The dog has four legs and is a good companion.
   这只狗有四条腿，是个很好的伴侣。
2. 2. Many animals have four legs, such as cats and dogs.
   许多动物都有四条腿，比如猫和狗。
3. 3. The baby elephant had only two legs when it was born, but now it has four.
   小象出生时只有两条腿，但现在它有四条。