同义词
- 4
- IV
- Little Joe
- four
- foursome
- quad
- quadruple
- quartet
- quartette
- quatern
- quaternary
- quaternion
- quaternity
- tetrad
词路径
- entity
- abstraction
- abstract entity
- measure
- quantity
- amount
- definite quantity
- number
- integer
- whole number
- digit
- figure
- four
- 4
- IV
- tetrad
- quatern
- quaternion
- quaternary
- quaternity
- quartet
- quadruplet
- foursome
- Little Joe