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

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