"许多其他办法" 用英语可以说成 "many other methods"。这个短语的来源是将 "许多" 译成 "many"，"其他" 译成 "other"，"办法" 译成 "methods"。

例句：

There are many other methods for solving this problem.

翻译：有许多其他的解决方法可以解决这个问题。

I'm sure there are many other methods that we haven't tried yet.

翻译：我相信我们还有很多没有尝试过的方法。

I've heard of many other methods for learning Engpsh, but this one seems to work best for me.

翻译：我听说过许多学习英语的方法，但这个方法似乎对我最有效。