What are the four-character idioms of synonyms?

Overwhelmed, heartbroken, grovelling, calm, outspoken, fearful,

Stunned, alert, narrow-eyed, head held high, dancing, beating your chest,

Stunned, gaping, gnashing, glib, iron teeth and copper teeth, thirsty,

Carelessness, dizziness, black and blue face, backache, earth-shattering, nonsense,

Call for rain, change the weather, speak boldly, race against time, be happy and well informed.

Idiom is a major feature of China traditional culture. It has a fixed structure and a fixed sentence, which expresses a certain meaning. It is applied to a sentence as a whole, with subjects, objects and attributes.

A large part of idioms are passed down from ancient times and represent a story or allusion. Some idioms are just a miniature sentence. Idiom is a ready-made word, similar to idioms and proverbs, but slightly different.