1
be off
表示活动取消或机器关闭。
The meeting is off.
会议取消了。
杀死
offs — third person singular of off
先理解核心含义，再看它在真实句子里的用法。
杀死
kill intentionally and with premeditation
The meeting is off.
会议取消了。
Prepare the learner guide for this word
可生成：语法 Grammar。只有点击后才会开始生成。
蓄意且有预谋地杀害
kill intentionally and with premeditation
In the movie, the hero offs the main villain in the final fight.
在这部电影里，主人公在最后一场打斗中杀死大反派。
The villain in the novel offed his rival before the wedding.
小说中的反派在婚礼前杀死了他的对手。
The player can off the enemy with a single shot.
玩家可以一枪杀死敌人。
表示活动取消或机器关闭。
The meeting is off.
会议取消了。
表示休假或不在岗。
He is off work today.
他今天不上班。
off 为副词，宾语可放在 off 前或后。
Turn off the light.
关灯。
表示移除衣物或起飞。
Take off your shoes.
脱下你的鞋子。
Not this
Off course, I will help you.
Use this
Of course, I will help you.
中文学习者常混淆发音相似的 "off" 和 "of"。"of course" 是固定搭配，意为“当然”；"off" 则表示“离开”或“关闭”。
Not this
I offed the light before leaving.
Use this
I turned off the light before leaving.
"off" 作为动词意为“杀死”，并非用于关闭电器。应使用短语动词 "turn off" 或 "switch off" 来表示“关闭”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
断断续续地
It rained off and on all day.
雨断断续续地下了一整天。
状态不佳的日子
Even the best players have an off day.
即使最好的球员也会有状态不佳的日子。
淡季
Hotel prices are lower during the off season.
淡季酒店价格较低。
微小的可能性
I came on the off chance that you'd be here.
我抱着你可能在这儿的微小可能性来了。
禁止进入的
The area is off limits to civilians.
该区域禁止平民进入。
断断续续地
It rained off and on all day.
一整天断断续续地下雨。
立刻，马上
He answered right off the bat.
他立刻回答了。
即兴地，不假思索地
I can't give you the exact number off the top of my head.
我无法立刻给你确切的数字。
砍掉他们的头！
The Queen of Hearts shouted, 'Off with their heads!'
红心王后喊道：‘砍掉他们的头！’
离开我的草坪！
Walt Kowalski growled, 'Get off my lawn!'
沃尔特·科瓦尔斯基咆哮道：‘离开我的草坪！’
Use offs naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象一个开关，拨到"off"位置，灯灭了，你‘哦’一声——‘关掉了’。
register: neutral; contexts: 命令、日常对话、短语动词; note_zh: 作为副词时多用于口语，表示离开、走开或动作的完成，如'go off'。通常与动词搭配使用，语域中立，但非正式对话中更常见。
Words like 'cough', 'trough', and 'scoff' share the same final sound /ɔf/. Be careful with 'coffee' (/ˈkɔfi/) and 'offer' (/ˈɔfər/), which are spelled similarly but pronounced differently.
Dictionary facts from ECDICT, WIKTIONARY.