One possible solution, if all else fails, is to take legal action.

如果其他方案都不行，一个可能的解决办法就是提起诉讼。

《柯林斯英汉双解大词典》

And if all else fails, emerging economies have one last resort.

如果所有这一切都失败了，新兴经济体还有最后一招。

youdao

And if all else fails, companies could technically turn their TV optimized sites into TV apps without much trouble.

如果都行不通的话，企业也可以通过技术手段很容易地把TV优化网站转移到TV应用中。

youdao

If all else fails, buy it yourself from guernseyjumpers.gg, Margaret Howell or John Lewis.

WSJ: Tina Gaudoin on Style: The Woolly Logic of Winter Wear

Merger, privatisation or, if all else fails, bankruptcy may now await China's 100, 000 smallest industrial enterprises.

ECONOMIST: The long march to capitalism | The

Of course, if all else fails, governments still have one final, time-proven means to collect taxes: force.

FORBES: Malone's Musing