When families gather for Christmas dinner,some will stick to formal traditions dating back to Grandma’s genneration?翻译

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答案：

When families gather for Christmas dinner,some will stick to formal traditions dating back to Grandma’s generation.

当全家人聚在一起吃圣诞饭时，有人坚持遵循从奶奶那一代流传下来的正式传统。

gather 聚集

stick to 坚持

dating back 追溯到