occasion

/əˈkeɪʒən/

an event that occurs at a critical time

中文释义：场合；时机；重大活动

The wedding was a joyous occasion celebrated by family and friends.

婚礼是一个由家人和朋友庆祝的欢乐场合。

On several occasions, the professor has emphasized the importance of critical thinking.

有几次，教授强调了批判性思维的重要性。