回堵 Save Sign in to save words huídǔ ㄏㄨㄟˊ ㄉㄨˇ (of traffic) to be jammed Tw traffic backup Character by character 回(huí)Hui ethnic group 堵(dǔ)block up Other words read huídǔ huidu with other tones 灰度 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0