Nash hadn't raised his voice, still spoke rather softly, confidentially.

纳什没有提高嗓门，仍然很轻地、悄悄地说。

《柯林斯英汉双解大词典》

He raised his voice for the benefit of the other two women.

他提高了嗓门，以便让另两个女人听得到。

《柯林斯英汉双解大词典》

He raised his voice to an even higher pitch.

他将嗓门提得更高了。

《柯林斯英汉双解大词典》

He raised his voice when no others would and had no fear of consequence, because he knew that truth was on his side.

CNN: Opinion: Chavez was a maker of dreams

He raised his voice for social justice.

WHITEHOUSE: President Obama and President Peres of Israel Speak at State Dinner | The White House

It was one of his most robust answers yet to the question and raised speculation that, despite his denials of a change in tone, he was eager to voice his enthusiasm for the euro.

BBC: Blair risks fanning euro flames