1
extended + noun
作定语，修饰名词。
The school offers extended daycare hours.
学校提供延长的日托时间。
扩展的；广大的
先理解核心含义，再看它在真实句子里的用法。
扩展的；广大的
made larger or wider in scope, range, or area
The school offers extended daycare hours.
学校提供延长的日托时间。
长度或延伸更长的；拉长的。
Longer in length or extension; elongated.
伸展的或拉出的；扩张的。
Stretched out or pulled out; expanded.
持续更久的；延长的。
Lasting longer; protracted.
范围或幅度大的；广泛的。
Having a large scope or range; extensive.
The store has extended opening hours during the holiday season.
这家商店在假日期间延长了营业时间。
She took an extended break from work to travel around Asia.
她休了一个长假去亚洲旅行。
The team's extended discussion finally led to a clear plan.
团队经过长时间的讨论，最终制定了清晰的计划。
作定语，修饰名词。
The school offers extended daycare hours.
学校提供延长的日托时间。
系表结构，表示状态。
The warranty is extended for another year.
保修期延长了一年。
Not this
The extended library services cover many subjects.
Use this
The extensive library services cover many subjects.
混淆了'extended'（延续的，延长的）与'extensive'（广泛的，大规模的）。修饰范围广应用'extensive'。
Not this
We had an extend stay in the hotel.
Use this
We had an extended stay in the hotel.
误将动词原形'extend'用作形容词，应用过去分词'extended'作定语修饰'stay'。
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use extended naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY.