I have long been waiting for an opportunity to escape.

这么久以来，我一直在等待逃跑的机会。

youdao

Several undeclared candidates were waiting for an opportunity to join the race.

几个还未正式宣布的候选人正等着机会参加竞选。

youdao

No matter how much he resists her help, she persists waiting for an opportunity to help him or tell him what to do.

不管他如何拒绝她的帮助，她都坚持等待任何帮助他的机会或告诉他该做什么。

youdao

He had been waiting for an opportunity to express artistically the horror and futility of warfare.

WSJ: The Sounds of Sacrifice | Benjamin Britten | War Requiem | Masterpiece by Stuart Isacoff

The region's new post-Arab Spring democratically-elected leaders are only too aware of the radical hardliners waiting for an opportunity.

CNN: After Israel-Gaza: Who won, who lost?

Should this profit-taking prove contagious, a move lower could be just what those who have been waiting for an opportunity to add some Facebook to their stock portfolios have been looking for.

FORBES: Zuckerberg: Facebook Will Make the Social Mobile