A: Seven voyages to the Western Ocean to play an idiom.

Puzzle: Sambo eunuch made seven voyages to the West (to use an idiom)

Riddle analysis: "Sambo eunuch", namely Zheng He, a eunuch and navigator in Ming Dynasty, went to the Western Ocean in 28 years, which promoted the economic and cultural exchanges between China and Asia and Africa. Serious: describes a very serious attitude in speaking and doing things.

Answer: Seriously.

Idiom: earnest.

Pinyin: zhèng zhòng qíshè.

Explanation: solemn: cautious and serious. Describe a serious attitude when talking and doing things.

Source: Cao Qingxue Qin's "Dream of Red Mansions" The fourth time: "So if you are serious, you will enter the door in three days."

Sun stood in front of the wall with his hands on his back, reading the slogan carefully. ★ Chapter 6 of Feng Deying's "Winter jasmine"?

Pinyin code: zzqs

Synonym: meticulous, methodical and earnest.

Antonym: treat sth lightly, treat sth lightly, perfunctory.

Lantern riddle: three treasures and seven voyages to the west.

Usage: as predicate and adverbial; Refers to the attitude towards things.