留心眼儿 Traditional 留心眼兒 liú xīn yǎn r 🔊 to be on the alert + Keep this word Meanings liú xīn yǎn r 留心眼兒 to be on the alertto keep one's eyes open Its characters 留liúto leave (a message etc)HSK 4心xīnheartHSK 4眼yǎneye (CL:隻|只[zhi1],雙|双[shuang1])HSK 5儿érchild