落单

chū fā hòu yào hé dà jiā zǒu zài yī qǐ bù yào luò dān

出发后，要和大家走在一起，不要落单。

Stay with others after we set out. Don't go alone.

chí táng zhōng méi yǒu yī tiáo yú luò dān

池塘中没有一条鱼落单。

No fish is left alone in the pond.

luò dān de láng

落单的狼

lone wolf