And if it's hard not to retaliate when someone knocks you down, it's even harder to let them knock you down again.

如果有人打你一拳不去报复很困难，不让他们再打你会更困难。

youdao

The rock is too hard for us to knock it down .

岩石对我们来说太硬，敲不下来。

youdao

Not ambition in the sense that you knock other people down to build yourself up, but in the fact that you will work hard to get what you want and help others to do the same thing.

这里的壮志不是说你可以撂倒他人强大自我，而是说你能够通过努力工作来得到自己渴望的东西，同时还能向他人伸出援手。

youdao

If Nokia can keep riding the fashion trends, then it will be hard for Microsoft to knock it down.

ECONOMIST: Microsoft and the Great Game | The

This makes them easy to set up--no tower or central antenna needed--as well as hard to knock out, since if one device goes down, the others will route around it.

FORBES: Motorola Moves Into Mesh