bird of passage

noun

1. 候鸟
   a bird that travels regularly from one part of the world to another at different seasons of the year
2. 过客
   a person who passes through a place without staying there long

1. N-COUNT 漂泊不定的人
   If you refer to someone as a bird of passage, you mean that they are staying in a place for a short time before going to another place.
   1. Most of these emigrants were birds of passage who returned to Spain after a relatively short stay.
      这些移民大多数都是作短暂停留后即返回西班牙的匆匆过客。

1. Most of these emigrants were birds of passage who returned to Spain after a relatively short stay.
   这些移民大多数都是作短暂停留后即返回西班牙的匆匆过客。
2. He is a wanderer on the face of the earth. I'm not a bird of passage.
   我不是漂泊不定的人。
3. I'm a bird of passage, dah-ling, just flitting through.
   亲爱的，我是只飞来飞去信使鸟，为的就是完成这些。
4. Andrew left for Madrid again yesterday-he's a regular bird of passage.
   安德鲁昨天又动身到马德里去了，他真是个行踪不定的人。
5. He was a bird of passage until he married and bought a house.
   他漂泊无定，直到结了婚，买了房子才安定下来。
6. You can't find him, he is a bird of passage.
   你打找不到他，他是一行踪不定的人。

noun

1. any bird that migrates seasonally

2. someone who leads a wandering unsettled life

   Synonym:    wandererroamerrover