His voice was deep and mellow and his speech had a soothing and comforting quality.

他的嗓音深沉柔美，他的演讲令人舒心宽慰。

《柯林斯英汉双解大词典》

I took a few deep breaths to calm myself down before I made my speech in public.

在演讲之前，我深呼吸了一下，使自己平静下来。

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The six-minute speech silenced all the people and made them fall into deep thinking.

6分钟的演讲让所有人安静下来，陷入了沉思。

youdao

He started scaling back French troop contingents in Africa, and in a famous speech gave deep offence on the continent, when he basically said it was time Africans started doing things for themselves.

BBC: France and Mali: An 'ironic' relationship

For the Conservatives it is easier to see the headline attraction of going further on welfare (although hard, Nick Boles' speech suggests how: deep into tax credits and benefits).

BBC: A tough end to a tough week for Nick Clegg

Curiously Mr Obama devoted the beginning of his speech to arguing that a plan that contained deep cuts without tax rises was unfair.

BBC: Low viciousness and high drama