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大姐：big elder sister, the eldest sister 二姐：second elder sister, the second sister 详情
叔叔、阿姨 sounds perfect for me, cordial and friendly. I heard that someone said 伯父、伯母， but I think this is too formal. 详情
Chinese people prefer drinking hot water because they believe that cold water destroys your stomach. They also believe that hot water 详情
join多指参加某组织，成为其中的一个成员. 例：①I will never forget the day when I joined the Party.我永远也忘不了入党的那一天。 详情
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