旷日持久

旷日持久	kuàng rì chí jiǔ	protracted (idiom) / long and drawn-out
旷	kuàng	to neglect / to skip (class or work) / to waste (time) / vast / loose-fitting
日	Rì	abbr. for 日本, Japan
日	rì	sun / day / date, day of the month
持	chí	to hold / to grasp / to support / to maintain / to persevere / to manage / to run (i.e. administer) / to control
持久	chí jiǔ	lasting / enduring / persistent / permanent / protracted / endurance / persistence / to last long
久	jiǔ	(of a period of time) long