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alter + object
alter 是及物动词，直接接宾语。
We need to alter our plans.
我们需要改变我们的计划。
改变；更改
先理解核心含义，再看它在真实句子里的用法。
改变；更改
to change or make something different
We need to alter our plans.
我们需要改变我们的计划。
改变形式或结构
To change the form or structure of.
变得不同。
To become different.
修改衣服以使其合身
To tailor clothes to make them fit.
对(狗或其他动物)进行阉割、去势或绝育。
To castrate, neuter or spay (a dog or other animal).
alter
Base
原形
alters
3rd person
第三人称单数
altering
-ing
现在分词
altered
Past
过去式
altered
Past participle
过去分词
I often alter my plans.
我经常改变我的计划。
She altered the design yesterday.
她昨天修改了设计。
They have altered the schedule.
他们已经调整了时间表。
规则动词，意为改变
The tailor will alter the dress to fit you perfectly.
裁缝会修改这件裙子，使其完美合身。
Global warming is altering weather patterns around the world.
全球变暖正在改变世界各地的天气模式。
He altered his plans after receiving new information.
他收到新信息后改变了计划。
alter 是及物动词，直接接宾语。
We need to alter our plans.
我们需要改变我们的计划。
She altered the dress to a smaller size.
她把裙子改小了一号。
被动语态，强调被改变。
The schedule was altered.
时间表被改了。
Not this
The schedule altered.
Use this
The schedule was altered.
动词alter是及物动词，需要宾语或使用被动语态。中文常说‘计划改变了’，但英语中‘alter’不能单独作不及物动词表示改变，必须使用被动语态或接宾语。
Not this
She altered her career.
Use this
She changed her career.
alter表示微调或局部修改，而变更职业是重大变化，应用change。中文常用‘改’字，但英语中alter与change有程度差异，需根据语义选择。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
改变计划
She had to alter her plans due to the weather.
由于天气原因，她不得不改变计划。
改变方向
The discovery altered the course of history.
这一发现改变了历史的进程。
改变某人的想法
Nothing could alter his mind once it was made up.
一旦他下定决心，什么都不能改变他的想法。
改变外观
They altered the appearance of the building completely.
他们彻底改变了建筑物的外观。
篡改事实
He was accused of altering the facts to suit his story.
他被指控篡改事实以符合他的说法。
另一个自我；知己
Batman's alter ego is Bruce Wayne.
蝙蝠侠的另一个自我是布鲁斯·韦恩。
改变格局
The new technology may alter the landscape of the industry.
这项新技术可能会改变行业格局。
改变习惯/做法
He needs to alter his ways if he wants to succeed.
如果他想成功，就需要改变他的做法。
Use alter naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
'alter' 谐音 '奥特'，像奥特曼变身改变形态。
语域：neutral 常见场景：academic、business、technical 通常用于正式或中性场合，如学术、商业或技术文本中，表示修改或改变。
Words like 'falter', 'halter', and 'altar' rhyme exactly with 'alter' (stressed vowel and following sounds match). 'Alder' looks similar but ends with /dər/ instead of /tər/, so it does not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.