What is the idiom "a red flag says the weather is good and then a dinosaur replies that it is good"?

First, pinyin:

Yang Guifei decoction

Second, interpretation:

Different mouths say the same thing. It means that everyone says the same thing.

Third, the source:

"Biography of Jade Bing in Song Dynasty": "If you think deeply, you will only be stupid and dull. Today's events have the same pronunciation, but it is something that is obvious to a few ears but not measured by politics. "

Four, synonyms:

With one voice, happen to coincide, with one voice, with one voice, like a mouthful.

Five, antonyms:

Opinions vary, opinions vary, lawsuits continue, and no agreement has been reached.

Sixth, make sentences:

Everyone said with one voice that he was a living Lei Feng.

2. But it is another matter to sing a hymn to the monarchy with one voice.

At the meeting, everyone said with one voice that we must get good grades in the exam competition.

4. The children felt very sorry from the bottom of their hearts and accused the person who tore the book with one voice.

We all say I love you with one voice.