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Initially, [clause]
常用于句首，表示时间上的起点。
Initially, he refused to help.
最初，他拒绝帮忙。
起初；最初；一开始
先理解核心含义，再看它在真实句子里的用法。
起初；最初；一开始
At the beginning; at first.
Initially, he refused to help.
最初，他拒绝帮忙。
起初；一开始。
At the beginning.
在开始时
at the beginning
Initially, I thought the project would be easy, but it turned out to be quite challenging.
最初，我以为这个项目会很容易，但结果却相当有挑战性。
The company initially planned to launch the product in March, but delays pushed it to June.
公司最初计划在三月份推出该产品，但延误将其推迟到了六月。
She was initially hesitant to accept the job offer, but after learning more, she decided to take it.
她最初对接受这份工作邀请犹豫不决，但在了解更多后，她决定接受。
常用于句首，表示时间上的起点。
Initially, he refused to help.
最初，他拒绝帮忙。
放在动词前，强调动作的初始状态。
She initially planned to stay for a week.
她最初计划待一周。
修饰形容词，常用于系表结构。
The project was initially successful.
该项目最初很成功。
Not this
At initially, I hesitated.
Use this
Initially, I hesitated.
英语中副词 'initially' 已含 '在最初' 义，受中文 '在最初' 影响，学习者常误加介词 'at'，应直接使用副词作状语。
Not this
I had an initially hesitation.
Use this
I had an initial hesitation.
修饰名词需用形容词，'initially' 是副词，不能作定语；中文 '最初的' 对应形容词 'initial'，而副词 'initially' 修饰动词或句子。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
最初认为
She initially thought the job would be easy.
她最初认为这份工作会很容易。
最初计划
The project was initially planned for six months.
该项目最初计划为期六个月。
最初提出
The idea was initially proposed by a junior researcher.
这个想法是由一位初级研究员最初提出的。
最初预期
The results were better than initially expected.
结果比最初预期的要好。
Use initially naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
音似'伊始里'，联想‘在一开始里’，即‘最初’。
neutral
句首时常用逗号分隔
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.