合同中the singular includes the plural and vice versa这句话应该怎么翻?

合同中the singular includes the plural and vice versa这句话应该怎么翻? Some words have the same __for singular and plural. Singular and plural nouns Complete the following passage with singular or plural nouns vice versa（反之亦然）中,versa的意思是什么? Singular 和 plural singular+PLURAL 英语 英语翻译在合同中,这个词应该翻译成什么?eg：Any communication between the company Singular Number,Plural Number,Regular Plural plural verbs 和 singular verbs recognize; charge; vice versa; feature; drawback; perception I ran widly down the road and got the only spare seat.这句话怎么翻