积累 jī lěi to accumulateaccumulationcumulativecumulatively Example sentences 人类在积累知识方面已经取得了很大的进步。 rénlèi zài jīlěi zhīshi fāngmiàn yǐjīng qǔdéle hěn dà de jìnbù. Human beings have made great progress in accumulating knowledge