These backpacks are designed to carry a heavy load.

这些背包是为携带重物设计的。

The shoulder pole bent with heavy load.

重担压弯了扁担。

It is cruel of him to make the donkey carry such a heavy load.

他真心狠， 让驴驮这么重的东西。

The heavy load of managing production was then placed on his shoulder.

管理生产的千钧重负便落在他的肩上。

This heavy load will crush you soon.

这沉重负担不久会使你困苦。