The tone of the speech was upbeat.

这次讲话的语气颇为乐观。

《牛津词典》

Introduction is of great importance since it sets the tone for the speech.

开场白很重要，因为它为演讲奠定基调。

youdao

So, in the first half of Mr Bush's speech he struck a bipartisan tone.

因此，在布什演说的前半部分，他紧扣两党合作。

youdao

So, in the first half of Mr Bush's speech he struck a bipartisan tone.

因此，在布什演说的前半部分，他紧扣两党合作。

youdao