But it can also be very, very difficult - and, sometimes, just a little frustrating.

不过它也可能会很难很难-而且有时候，让人就是觉得有点烦心。

youdao

But it can also be very, very difficult - and, sometimes, just a little frustrating.

不过它也可能会很难很难-而且有时候，让人就是觉得有点烦心。

youdao