Words describing "letters"

Books are not just clouds falling on the moon, fish are scattered and feathers are broken.

Pronunciation: [sh bùjūn yán]

Interpretation:? Books: letters. It is difficult to fully express its meaning in the letter. Later, I often use idioms at the end of letters. ?

Make sentences:? This book is incomplete, so I won't write it. I hope you can take care of yourself.

Pronunciation: [tíng yún Luo Yuè]?

Interpretation: expressing the memory of relatives and friends (used in letters in the old days).

Sentence: This factory has stopped production because of outdated equipment and chaotic management.

Pronunciation of fish ruler:? [yúchuan chǐsè]

Interpretation: Geometer: In ancient times, it was written with silk, which was generally one foot long, so it was called letters. Refers to the delivery of letters.

Sentence: Plum blossoms are sent by post, but fish grow long, and lovesickness never returns.

Pronunciation: [Duane Y ǔ Hu Lin]

Interpretation: truncated letters. Feather scales, fish geese. ?

Sentence: Yuan Kedan Qiu's "Chai Jingshu": "Because the imperial examination left home for half a spring, I broke my feathers and lost my scales. Today? God teaches you, I am glad to receive your letter.

River fish goose? Pronunciation:? [ hé yú tiān yàn ]

Interpretation: In ancient times, all fish and geese could deliver letters, and then "river fish and goose" was used to refer to the sender of letters.

Sentence: "Italian apes dream, river fish geese hold books."