Word: 丢三落四 (diūsānlàsì) Traditional: 丟三落四 丢三落四 dictionary entry diūsānlàsì forgetful; empty-headed Full dictionary entry for 丢三落四 Example sentences using 丢三落四 2 sentences, showing page 1 of 1. 出门前再检查，免得丢三落四。 Chū ménqián zài jiǎnchá, miǎnde diūsānlàsì. Check again before you leave so you don't forget things. 她做事总是丢三落四。 Tā zuòshì zǒngshì diūsānlàsì. She is always forgetful in everything she does.