A dead letter is a dead letter
As a Chinese idiom, Pinyin is s ǐ Bi ā ob á ICH á n, which means to be entangled. It comes from the marriage story of awakening the world.
The origin of Idioms
The 38th chapter of the romance of awakening the world written by Xi Zhou Sheng in Qing Dynasty: "if it wasn't for Di Zhou's death, he would seize the opportunity to escape."
Idiom usage
Used as a predicate or attributive; used in writing.
Chinese PinYin : sǐ biāo bái chán
A dead letter is a dead letter
Raise an cobra to become a snake. yǎng huǐ chéng shé
get into trouble through clever means. nòng qiǎo fǎn zhuō
Male singers and female followers. nán chàng nǚ suí
The upper mausoleum is replaced by the lower. shàng líng xià tì