He should check his facts before sounding off.

【sound】他应该弄清楚事实才发表高论。

She’s always sounding off about too much sex in the media.

【sound】她经常大发议论，抱怨媒体上有太多的性内容。

Trump sounding off Sunday on the White House lawn as an attorney for the whistleblower said his client is willing to answer written questions submitted by House republicans.

周日，特朗普在白宫草坪上发表讲话，而告密者的律师则表示，他的当事人愿意回答众议院共和党人提交的书面问题。

I would try to please first one person who had been sounding off against me; but the very thing I did to patch it up with him would make someone else mad.

我会先取悦一个一直反对我的人；但是我为和他和解所做的事情会让其他人发疯。