He said a colleague told him the wreckage was needed to fill in a muddy ditch to make rescue efforts easier.

他说他同事告诉他，为了让援救工作更加容易进行，需要用车厢残骸填泥泞的壕沟。

Hundreds of people helped in the search and rescue efforts, including some 600 volunteers, police and members of the army.

数百人参与了搜救工作，其中包括约600名志愿者、警察和军队人员。

The rescue efforts are underway.

营救工作正在进行之中。

Rescue efforts were continuing.

援救工作仍在继续中。

Rescue efforts are underway.

救援工作正在进行。