They issued a special set of stamps to mark the occasion.

他们特别发行了一套纪念邮票。

《牛津词典》

Hundreds of thousands of people took to the streets to mark the occasion.

数十万人走上了街头纪念这一时刻。

《柯林斯英汉双解大词典》

To mark the occasion, two exhibitions have been staged in Moscow.

为了纪念这一特殊时刻，莫斯科举办了两场展览。

youdao

Lovell will join fellow astronaut Fred Haise to mark the occasion.

VOA: standard.2010.04.04

Events are being organized around the world throughout the year to mark the occasion.

UNESCO: EDUCATION

And to mark the occasion, he called first on the veteran of the press corps, Helen Thomas.

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But there was no one to greet them, and only stale rations to mark the occasion with.

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