on the occasion of somethingformalHAPPEN at the time of an important event 在〔重要事件〕之际 on the occasion of his second wedding 在他第二个婚礼上
→ rise to the occasion at rise1(9)on the occasion of something• In May 1985, on the occasion of the centenary, hundreds of people thronged the platform, many in Victorian costume.• Ragged urchins, of course, sitting on those school benches on the occasions of her visits.• Although it is not continuous, it is observed on the occasion of some miracles.
→ on the occasion of something at occasion1(3)