A happy ending is only possible because the hero has first vanquished the dragons.

只有主人公先把那些恶龙制服，快乐的结局才有可能。

《柯林斯英汉双解大词典》

Entering the realm of Nirvana is only possible for those who have become pure.

心无杂念，方可入涅。

《柯林斯英汉双解大词典》

My personal opinion is that the all-round development of scholars is only possible when the educational institutions provide them with a wide range of learning opportunities.

我个人的观点是，只有教育机构为学者提供广泛的学习机会，他们才能全面发展。

youdao

"I believe it is not only possible, but in fact easier to do this without deciding the legal question of whether these states have ever been out of the Union.

VOA: special.2009.12.31

Politics only takes place within the context of the particular. It is only possible within the structure of the regime itself.

政治仅发生在,特别的脉络之内，而且仅可能,发生在政体本身的架构中。

耶鲁公开课 - 政治哲学导论课程节选

In other words, his point is that good is only possible because of the prior existence of bad.

换句话说，他的论点是,善存在的可能,仅在恶的事先存在。

耶鲁公开课 - 政治哲学导论课程节选

Operation Tor Shezada is only possible because extra British forces have been brought in to Afghanistan.

BBC: UK troops launch Operation Tor Shezada in Afghanistan

This is only possible if I receive enough assistance to teach individuals how to unlock their own phones.

FORBES: Open Letter for Help on Cellphone Unlocking

This revival is only possible because the credit markets have become more robust.

ECONOMIST: Are private-equity firms able to escape their past?