downheartedly

He can only stand by repentantly and downheartedly,while others go on walking heading for the goals.

于是，当其他人都在朝着目标继续前进时，他却只能停在原地，垂头丧气，追悔莫及。

Zuo Feiyo downheartedly walked over to a platform bench and plumped himself right down.He hung his head in despair and sat there without moving.

左非右颓然走到月台的椅子前，一屁股坐了下去，垂头丧气地，一动也不动。