艰巨

The country faces a huge task of national reconstruction following the war.

战后，该国面临着重建家园的艰巨任务。

The general assigned him to do the tough task.

将军派他去完这项艰巨的任务。

Tell us how you fulfilled the heavy task ahead of schedule.

"告诉我们,你们是怎样提前完这一艰巨任务的。"

Volunteers are needed for an exacting assignment.

需要志愿者承担艰巨任务。

He shrank from a hard task.

他害怕艰巨的任务。