Learner's definition of US
1
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used to refer to the speaker and another person or group of people as the indirect object or direct object of a verb我们（用作动词的宾语） -
It was nice of you to invite us.你邀请我们，真是太好了。
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It's fine with us if you want to bring a friend.如果你想带个朋友来，我们没意见。
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There's nobody in here but us kids.这里除了咱们这些小孩没别人。
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Someone please help us!谁来帮帮我们！
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It's just the two of us for dinner.就我们两人吃饭。
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They told us it would be a few minutes, so why don't we all wait outside?他们告诉我们还要几分钟就行，那我们为什么不能都在外面等一等呢？
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All of us [=we all] will be affected by these changes.我们所有人都会受到这些变化的影响。
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It's an exciting time for all of us.这是一个令我们大家激动的时刻。
2
: people in general（泛指）人们