invested
用法要点
句型搭配
invested 常用于被动语态或完成时态，表示投资已完成或状态持续。在主动语态中，主语通常是投资者，宾语是投资对象。
介词用法
invested 常与介词 in 搭配，表示投资于某领域、项目或人。偶尔与 with 连用，表示赋予某种特质或权力，但较少见。
语域说明
invested 在商务和金融语境中较正式，指资金投资；在日常和情感语境中较中性，可指时间、精力或情感的投入。避免在非正式口语中过度使用。
基础例句
She invested a lot of time in learning Spanish, and now she can speak it fluently.
她花了很多时间学习西班牙语，现在能流利地说了。
They invested their savings in a new car, which has made commuting much easier.
他们把积蓄投资买了一辆新车，这让通勤方便多了。
I feel invested in this project because I helped plan it from the start.
我对这个项目很投入，因为我从一开始就参与了规划。
He invested $500 in that startup, hoping it would grow into a successful business.
他投资了500美元到那家初创公司，希望它能发展成成功的企业。
高级例句
The government has invested substantial funds in infrastructure development to boost economic growth.
政府已投入大量资金用于基础设施建设，以促进经济增长。
In the study, participants who were emotionally invested in the task showed higher performance outcomes.
在这项研究中，对任务情感投入的参与者表现出更高的绩效结果。
The firm is strategically invested in emerging markets, diversifying its portfolio to mitigate risks.
该公司战略性地投资于新兴市场，通过多元化投资组合来降低风险。
Researchers have invested years in this experiment, aiming to publish groundbreaking results in peer-reviewed journals.
研究人员已投入多年进行这项实验，旨在在同行评审期刊上发表突破性成果。
高频搭配
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常见错误
错误使用了介词 on。invest 通常与 in 搭配表示投资于某物，on 在此语境中不正确，应改为 in。
错误使用了动词不定式 to help。invested 作为形容词或分词时，常接 in + 动名词或名词，表示投入于某行动或事物，应改为 in helping。
近义词辨析
committed
committed 强调承诺或奉献，常用于长期责任或忠诚；invested 更侧重资源（如时间、金钱）的实际投入，可能带有期望回报的意味。
She is committed to her job (强调忠诚和奉献) vs. She is invested in her job (可能指投入了时间或情感，期待职业发展)。
allocated
allocated 指分配或拨付资源，如资金或时间，中性且常用于正式规划；invested 隐含主动选择和潜在收益，情感或金融色彩更强。
Funds were allocated to the project (中性分配) vs. Funds were invested in the project (暗示期望增长或回报)。