你必须得非常自信，相信自己做大。

You need to be very confident that you can scale.

youdao

研究了这么长时间，你就必须得相信这个想法是可行的，而且它最终可以实现。

After such a long time, you have to really believe in an idea and that it can eventually work.

youdao

研究了这么长时间，你就必须得相信这个想法是可行的，而且它最终可以实现。

After such a long time, you have to really believe in an idea and that it can eventually work.

youdao