bear frame

例句：

1. 1.The bear frame was a popular item in the old days.
   熊框是旧时代非常流行的物品。
2. 2. The bear frame is used to protect the bear's head from injury.
   熊框用来保护熊的头部免受伤害。
3. 3.The bear frame is still used today as a symbol of strength and endurance.
   熊框在今天仍然被用作力量和耐力的象征。