4
参考词典中4的常规释义：
英英解释
1个名词解释
- the cardinal number that is the sum of three and one
[同] 4, four, foursome, iv, little joe, quadruplet, quartet, quatern, quaternary, quaternion, quaternity, tetrad
点击查看……1个形容词解释
点击查看……- the cardinal number that is the sum of three and one
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