occasions
n. 场合；机会（occasion 的复数）；理由
v. 致使；引起（occasion 的第三人称单数）
例句
I've met him on several occasions.
我曾见过他几次。
《牛津词典》
He has been late on numerous occasions.
他已经迟到过无数次了。
It happened on three separate occasions.
这事在三个不同的场合发生过。
