这里的传教士简直没法完成任务。
And so now we have to solve two coupled differential equations, which is a hopeless task.我们要解决,两个成对的微分方程,这是无法解决的任务。
He felt quite certain that his nephew would never come back alive from the hopeless task.他断定他的侄子再不会活着回到他面前,因为这根本就是个不可能完成的使命。