mass migration

US 
UK 
  • un.大批回游;大规模迁移
  • Web迁徙;移民大批来美;群众迁徙
un.
1.
大批回游
2.
大规模迁移

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard