在十月三十一日晚上用英语怎么说

"Halloween" 是十月三十一日晚上的英文称呼。来源是来自英国和爱尔兰的传统节日"All Hallows' Eve"，意为万圣节前夕。

例句:

"I'm going to a Halloween party tonight." (我今晚要去参加一个万圣节派对。)
"I'm going to dress up as a witch for Halloween." (我要做个女巫装扮过万圣节。)
"The kids are going trick or treating on Halloween." (孩子们要在万圣节晚上去挨家挨户要糖。)