处理过时的技术是一种令人沮丧的情况。

Dealing with outdated technology is a ___frustrating situation.

看着宝贵的时间被浪费真是令人沮丧。

It's ___frustrating to watch valuable time being wasted.

当行程紧张时，等待延误的航班极其令人沮丧。

Waiting for a delayed flight when you have a tight schedule is extremely ___frustrating.