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undergo + noun/pronoun
后接名词或代词作宾语，常指经历治疗或手术。
He underwent surgery for his knee.
他因膝盖接受了手术。
经历；经受
先理解核心含义，再看它在真实句子里的用法。
经历；经受
experience or go through (something, especially a change or process)
He underwent surgery for his knee.
他因膝盖接受了手术。
经历；度过某一阶段。
To experience; to pass through a phase.
遭受；忍受；承受。
To suffer or endure; bear with.
undergo
Base
原形
undergoes
3rd person
第三人称单数
undergoing
-ing
现在分词
underwent
Past
过去式
undergone
Past participle
过去分词
She undergoes regular medical checkups.
她定期接受医疗检查。
He underwent surgery last year.
他去年接受了手术。
The company has undergone significant changes.
这家公司经历了重大变革。
不规则动词
The old bridge underwent repairs last year.
这座旧桥去年进行了修缮。
The new employee is undergoing training this week.
这名新员工本周正在接受培训。
All passengers must undergo a security check before boarding.
所有乘客登机前必须接受安检。
后接名词或代词作宾语，常指经历治疗或手术。
He underwent surgery for his knee.
他因膝盖接受了手术。
也可后接抽象名词，表示经历变化或过程。
The country has undergone significant changes in the last decade.
这个国家在过去十年经历了重大变化。
Not this
He has underwent a surgery.
Use this
He has undergone a surgery.
此句中，'has'之后应用过去分词'undergone'，而非过去式'underwent'。
Not this
He suffered a surgery.
Use this
He underwent a surgery.
由于中文'遭受'的干扰，学生误用了'suffer'。但描述接受手术时应用'undergo'，表示经历，不带负面含义。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
接受手术
He underwent surgery last week.
他上周接受了手术。
接受治疗
She is undergoing treatment for cancer.
她正在接受癌症治疗。
经历转变
The city underwent a remarkable transformation.
这座城市经历了显著的转变。
接受测试
The new drug underwent rigorous testing.
这种新药经过了严格的测试。
接受审查
The policy will undergo a thorough review next month.
这项政策将在下个月接受全面审查。
经历回心转意
After listening to her argument, he underwent a change of heart and supported the proposal.
听完她的论点后，他回心转意，支持了该提议。
经历巨变
The company underwent a sea change in its corporate culture after the merger.
合并后，公司企业文化经历了巨变。
经受战火的洗礼
The new recruit underwent a baptism of fire on his first day at the front lines.
新兵在前线的第一天就经受了战火的洗礼。
你将接受严格的训练。
In Star Wars: The Empire Strikes Back, Yoda says this to Luke Skywalker before his Jedi training.
在《星球大战：帝国反击战》中，尤达对卢克·天行者说的这句话，预示着他即将开始的绝地训练。
Use undergo naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象你'在下面走'（under go），不得不经历或忍受上面的东西。
通常用于正式或专业语境，如医疗、科学或变革经历。
Words 'go', 'ago', and 'forgo' rhyme with 'undergo' because they share the same stressed vowel /əʊ/. 'Cargo' ends with the same letters but has primary stress on the first syllable, so it does not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.