be down in the mouth
US /bi daʊn ɪn ðə maʊθ/
UK /bi daʊn ɪn ðə maʊθ/
1.
垂頭喪氣, 悶悶不樂
to be visibly sad or depressed
:
•
She's been down in the mouth ever since her pet cat went missing.
自從她的寵物貓失蹤後，她一直悶悶不樂。
•
Don't be down in the mouth, things will get better.
別垂頭喪氣的，事情會好起來的。