1
expatiate on sth
此为最常用搭配，on后可接话题。
He expatiated on the benefits of the new policy.
他详细阐述了新政策的好处。
详述；细说
先理解核心含义，再看它在真实句子里的用法。
详述；细说
expatiate
He expatiated on the benefits of the new policy.
他详细阐述了新政策的好处。
详细写作或演讲；在论证或讨论中详尽无遗
To write or speak at length; to be copious in argument or discussion.
expatiate
Base
原形
expatiates
3rd person
第三人称单数
expatiating
-ing
现在分词
expatiated
Past
过去式
expatiated
Past participle
过去分词
He expatiates on the benefits of meditation.
他详述冥想的好处。
She expatiated upon the topic for hours.
她就这个话题详述了几个小时。
They have expatiated on the subject in their latest book.
他们在最新著作中详述了这个主题。
常与on/upon连用，表示详述。
The professor expatiated on the importance of sleep for nearly an hour.
教授花了将近一个小时详细讲述了睡眠的重要性。
Instead of giving a short answer, he expatiated upon the risks of the plan.
他没有简短回答，而是详细阐述了该计划的风险。
While expatiating on the benefits of exercise, she forgot the time.
她详细讲述运动好处时，忘了时间。
此为最常用搭配，on后可接话题。
He expatiated on the benefits of the new policy.
他详细阐述了新政策的好处。
about亦可用，但不如on/upon正式。
She expatiated about her travels in Europe.
她详细讲述了她在欧洲的旅行。
Not this
He expatiated about the benefits of the new policy.
Use this
He expatiated on the benefits of the new policy.
expatiate 后通常接介词 on 或 upon，而非 about，表示详述某话题。
Not this
She expatiated her research findings.
Use this
She expatiated on her research findings.
expatiate 是不及物动词，不能直接接宾语；需加介词 on 或 upon 再接话题。
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常与on/upon连用，表示详述某话题。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.