Word: 繁重 (fánzhòng) 繁重 dictionary entry fánzhòng heavy; burdensome; heavy-duty; arduous; onerous Full dictionary entry for 繁重 Example sentences using 繁重 2 sentences, showing page 1 of 1. 学习任务太繁重，他睡不好。 Xuéxí rènwu tài fánzhòng, tā shuì bù hǎo. His schoolwork is so heavy that he can't sleep well. 繁重的家务让她很累。 Fánzhòng de jiāwù ràng tā hěn lèi. The burdensome housework leaves her exhausted.