1
be extensively + past participle
被动结构中，extensively位于过去分词前。
The method has been extensively tested.
该方法已被广泛测试。
广泛地；大规模地
先理解核心含义，再看它在真实句子里的用法。
广泛地；大规模地
in an extensive manner; widely
The method has been extensively tested.
该方法已被广泛测试。
广泛地；大规模地。
In an extensive manner, widely.
广泛地
in a widespread way
在很大程度上；极大地。
To a great extent.
She has traveled extensively across Asia and Europe.
她广泛游历了亚洲和欧洲。
AI contextual example
The scientist read extensively before writing her paper.
这位科学家在写论文前进行了大量阅读。
AI contextual example
The team discussed the proposal extensively before voting.
团队在投票前对提案进行了充分讨论。
AI contextual example
oxidation ponds are extensively used for sewage treatment in the Midwest
在中西部,氧化塘被广泛用于污水处理
WordNet
被动结构中，extensively位于过去分词前。
The method has been extensively tested.
该方法已被广泛测试。
主动语态中，extensively常置于动词后，也可置于动词前以强调范围。
They used the tool extensively.
他们广泛使用了该工具。
Not this
He has extensive traveled in Asia.
Use this
He has traveled extensively in Asia.
extensive 是形容词，不能修饰动词 traveled；应使用副词 extensively 来修饰动词。
Not this
This is an extensively report on the subject.
Use this
This is an extensive report on the subject.
extensively 是副词，不能直接修饰名词 report；应使用形容词 extensive 来修饰名词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
被广泛研究
The effects of the drug have been extensively studied.
这种药物的效果已被广泛研究。
被广泛使用
This technique is extensively used in modern medicine.
这种技术在现代医学中被广泛使用。
被广泛研究
The region has been extensively researched by geologists.
该地区已被地质学家广泛研究。
被详细记录
The history of the event is extensively documented.
这一事件的历史被详细记录。
被广泛讨论
The proposal was extensively discussed at the meeting.
该提案在会上被广泛讨论。
被广泛修改
The software has been extensively modified to improve performance.
该软件已被广泛修改以提高性能。
Use extensively naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆：extensive（广阔的）+ly，意为广泛地。
中性；多用于书面和口语，表示范围广泛地。
These words rhyme with 'extensively' as they share the same ending /sɪvli/. All are adverbs ending in -sively.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.