不可或缺bùkěhuòquēTop 15000Meanings1. necessary2. must haveCharacters used不no可can或maybe缺deficiencyExamples1在zài下雪xiàxuě很hěn多duō的de地方dìfang，煤油méiyóu是shì不可或缺bùkěhuòquē的de东西dōngxi。In places where it snows a lot, kerosene is an indispensable item.