He used all available means.

他用？了一切可用的方法。

He used all available means.

他用尽了一切可用的方法。

All available means have been tried.

所有的办法都用尽了。

All available means have been employed.

一切可用的办法都用上了。

They have tried all available means to open the door.

他们曾试用所有有用的方法来开这门。