Be forewarned, however, that this can be a slow and often futile process.

但你要做好心理准备，因为这通常是漫长而且徒劳无功的过程。

youdao

The north's campaign there, however, appears increasingly futile.

然而，北方在那里的行动显得越发不足道。

youdao

However, this is bound to be a futile wait.

不过，这是必然是徒劳的等待。

youdao

However, this is bound to be a futile wait.

不过，这是必然是徒劳的等待。

youdao