（尤当 have 为助动词时，we have 的常用口语形式） We've is the usual spoken form of 'we have', especially when 'have' is an auxiliary verb. （尤当 have 为助动词时，we have 的常用口语形式）
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'Hello, I don't think we've met,' Robert introduced himself.
“你好，我想我们还没有见过吧，”罗伯特自我介绍道。
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It's the first time we've been to the cinema together as a family.
这是我们全家第一次一起去看电影。