bench bottom burden

例句：

1. 1.The weight of the bench bottom burden is too heavy for me to lift.
   长凳底部的负担对我来说太重，我举不起来。
2. 2. He had to carry the bench bottom burden himself.
   他不得不自己承担长凳底部的负担。
3. 3.The weight of the bench bottom burden was causing him pain.
   长凳底部的负担使他感到疼痛。