Translation of "Role" in Chinese

Must the woman always play the secondary role?

女性永遠只能扮演次要角色嗎？

The role of the placenta is to nourish the foetus.

胎盘的角色是滋养胎儿。

He will play the leading role for the first time in the next school festival.

这次校庆时，他将第一次做主角。

Computers seem to play the role of the human brain, so they're often called "electric brains".

計算機似乎有著人類大腦一樣的作用，所以常常被稱為電腦 。

Computers are certainly playing an important role in our life, whether we like it or not.

无论我们是否喜欢电脑，它在我们的生活中始终起着重要的作用。

If you have hope, then you'll certainly find happiness, and will become a role model for others as well.

如果你懷抱希望, 那麼你一定會找到幸福, 而且也會成為其他人的榜樣。

As the saying goes, "You reap what you sow", and yet another says that luck plays an important role in success too!

俗話說：一分耕耘、一分收穫；可俗話又說：人無橫財不富、馬無夜草不肥！