toe burden

例句：

1. 1. He was carrying a heavy toe burden on his back.
   他背上背着一个沉重的负担。
2. 2. The company's new shoes are causing a lot of foot burden for employees.
   公司的新鞋子给员工带来了很多脚负担。
3. 3. The weight of the toe burden made her walk with a limp.
   这个脚负担的重量让她走路时一瘸一拐的。