My friends and I are playing our part in the fight against cholera.

我和我的朋友们正在为抗击霍乱发挥我们的作用。

But if we want to avoid them, we all have to play our part.

但如果我们想要避免感染，我们都必须做好自己的事。

And we will play our part to contribute more to world peace and stability.

“同时我们也会为世界和平稳定贡献更多力量。”

All that we can decide is whether we will play our part well or poorly.

我们所能决定的是，我们将能否发挥好自己的作用。"

Life is a play in which we all take part, and our duty is to play our part well.

人生是一出戏，每个人都参与其中，而我们的责任就是要演好自己的角色。

And every single one of us can take a step and play our part.

我们每个人都可以迈出一步，发挥自己的作用。

And we play our part in Scotland in building a fairer, happier world as well.

我们也在苏格兰发挥自己的作用，建设一个更公平、更幸福的世界。

Jen has made us determined to be helpful, and Aditi has gotten us clear on playing our part as a date.

Jen 让我们下定决心要提供帮助，而 Aditi 让我们清楚地扮演约会对象的角色。