英文: Billy: That is the norm.
中文: 比利:这很正常。英文: Jack: Is that the norm?
中文: 杰克:这种现象普遍吗?英文: Four-year university degrees are an international norm.
中文: 四年制大学是国际间的主流。英文: Practice is the only norm for verifying truth.
中文: 实践是检验真理的唯一标准。英文: Practice is the only norm for verfying truth.
中文: 实践是检验真理的唯一标准。