To bid farewell to those departing and welcome those arriving; to see off the old and usher in the new, often referring to personnel changes or transitions.
每年年终，社区都会举办一场聚会，送故迎新，感谢志愿者们一年的辛劳，并期待新成员的加入。
At the end of each year, the community holds a gathering to bid farewell to the old and welcome the new, thanking volunteers for their hard work throughout the year and looking forward to new members joining.
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