对于面向图形用户界面的商业操作系统养育出来的用户，换用开源POSIX类的操作系统可能是一项困难重重的任务。

For users reared on GUI-oriented commercial operating systems, switching to open source POSIX-type OSes can be an onerous task.

youdao

对于困难重重的阿富汗来说，同样的任务能够完成吗？

Can the same be done for the troubled mission in Afghanistan?

youdao

尽管困难重重，但是我们的任务已经顺利完成。

In spite of the difficulties, our task was got over well.

youdao

尽管困难重重，但是我们的任务已经顺利完成。

In spite of the difficulties, our task was got over well.

youdao