Jyutping
daa2 maa4 zoek2 wan6 dung6
Pinyin
dǎ má què yùn dòng
Definitions (CC-CEDICT)
the Great Sparrow Campaign or the Four Pests Campaign, one of the actions during the Great Leap Forward 大躍進|大跃进[Da4 yue4 jin4] aiming to eliminate four pests: rats, flies, mosquitoes, and sparrows