Goodbye is not goodbye all laugh and say goodbye.

再见的不再见的都笑着说再见。

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I'm writing goodbye letters to all my friends at school.

我正在给学校的所有朋友写告别信。

youdao

When the last class was over, we all rushed out of the classroom to wave our teacher goodbye.

当最后一堂课结束时，我们都冲出教室，挥手告别老师。

youdao

Goodbye.And God bless you all."

VOA: special.2009.12.24

John Harbaugh was ready to say goodbye to all of that already.

WSJ: Super Bowl XLVII: Preparing to Be Harbaughed

Prior to filming The Awakening, Hall read Robert Graves' Goodbye to All That, The Great Silence: 1918-1920 Living in the Shadow of the Great War by Juliet Nicholson and "a lot of war poetry".

BBC: Rebecca Hall turns ghost buster in The Awakening

"I think nothing of it, it is just away to say goodbye and sweep it all under the carpet, " said Betty Watkin-Hughes, whose family was forcibly moved from Capel Celyn.

BBC: NEWS | UK | Wales | The lake that stirred nationalism