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感謝祭, かんしゃさい
1. Thanksgiving (Day)
2. customer appreciation event, thank you (for your patronage) sales campaign
tbd
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おめでとう, 御目出度う, 御芽出度う
1. congratulations!, well done!, best wishes!, all the best!
恭喜!祝贺(例如“祝你圣诞快乐”)