It's just a matter of time
The Chinese idiom, Pinyin is p ǐ m ǎ zh ī L ú n, which means a war horse, a wheel; a small amount of military equipment. It comes from the biography of Gongyang, the 33rd year of Duke Fu.
The origin of Idioms
"Gongyangzhuan · the 33rd year of Yugong" says: "however, the Jin people and Jiang Rong want to eat the food and attack it, and the horse has no reaction."
Idiom usage
It means less equipment. example kill blood stream, corpse cross mountain path, horse only wheel, some never leak. (Chapter 45 of the chronicles of the Eastern Zhou Dynasty by Feng Menglong of Ming Dynasty)
It's just a matter of time
introspect on one 's own accord and listen to other 's views - nèi shì fǎn tīng