tone sth down

/təʊn/

tone n. 音调;音色;语气;色调

作动词就是使声调，语气如何....tone sth down就是使某事某物的声调语气下降，不那么高亢，更平和些。

to make something less forceful or offensive, usually a piece of writing or a speech

使(通常指文章或讲话)缓和;使温和

Some of the language in the original play has been toned down for the television version.

这部戏被拍成电视后，原剧中的一些语言已经被改得不那么激烈了。