Alice兔籽宝宝
一般是：1个就是单数 不加s2个以上就加s就这么简单你是我的合作伙伴You are my partner.我们是合作伙伴We are partner（单只我和你）/partners(多人).partner 翻译：1.作为名词n. ：伙伴；合伙人；配偶2.作为不及物动词vi. ：合伙；合股；成为搭档2.作为及物动词vt. ：使合作；与…合伙
百度地图运营
如果是一个伙伴的话，用Partner如果是两个或者两个以上的话，用partners你是我的合作伙伴：You are my partner.我们是合作伙伴：We are partners.单独用伙伴这个词，就是partner希望采纳
liushuangr
You are one of our partners.We are partners.You are our partner. He is our partner.
小L快跑
单数用partner复数用partners。。。3.N-COUNTThepartnersin a firm or business are the people who share the ownership of it. 合伙人[商业]例：He's a partner in a Chicago lawfirm.他是芝加哥一家律师事务所的合伙人。4.N-COUNTThepartnerof a country or organization is another country or organization with which they work or do business. 盟友例：Spain has been one of Cuba's major trading partners.西班牙一直是古巴的主要贸易伙伴之一。你是我的合作伙伴。You are my partner.我们是合作伙伴。We are partners.
