What you need to do now is to strive against your fear of speaking in front of the class.

你现在需要做的就是战胜在全班面前说话的恐惧。

He had to strive against fears.

他必须同恐惧进行斗争。

Give me the wings to strive against wind.

给我的翅膀，争取对风。

For our happy life, we strive against the enemy.

为了幸福生活，我们同敌人作斗争。

Seeing other strive, fail, and strive against spurs us all on.

看别人努力，失败，再奋斗能鞭策我们自己。