艰巨的任务

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

战，面临着重建家园的艰巨任务。

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

"告诉我们,你们是怎样提前完成这一艰巨任务的。"

The general assigned him to do the tough task.

将军派去完成这项艰巨的任务。

He shrank from a hard task.

害怕艰巨的任务。