He said growing food may seem like a " mission impossible" but it is necessary.

他说，种植作物看似是一项“不可能完成的任务”，但这件事是必要的。

It felt like an impossible mission trying to finish two tasks in just one hour.

要在一个小时内完成两项任务就像是一项不可能完成的任务。

On the bench across from him, Peggy Carter sat going over details of his seemingly impossible mission.

佩姬·卡特坐在他对面的长椅上，向他详细讲述这个看似不可能的任务的细节。

In the goalkeeper's mind, he is so much smaller than he actually is that guarding the goal becomes an impossible mission.

在守门员看来，比起实际的身材自己渺小很多，以至于守门变成一个不可能完成的任务。