副詞：以前地、先前地
常見搭配詞：
- as previously reported
正如之前報導的那樣
As previously reported, the mayor went on holiday despite the flood.
例句：正如之前報導的那樣，儘管發生了洪水，市長還是去度假了。 - previously known as
以前稱為
例句：The city previously known as Saigon is now called Ho Chi Minh City.
這個城市以前叫做西貢，現在叫胡志明市。(形容詞子句省略為形容詞片語) - previously mentioned
前面提到的
例句：The previously mentioned theory has been proven incorrect.
前面提到的理論已被證明是錯誤的。 - previously unseen
以前未見過的
例句：The artist unveiled a previously unseen painting at the gallery.
這位藝術家在畫廊展出了一幅以前從未公開過的畫作。 - previously unpublished
以前未發表的
例句：The book includes previously unpublished works by the author.
這本書包括作者以前未發表的作品。 - previously scheduled
原先安排的
例句：The previously scheduled meeting has been postponed.
原先安排的會議已被延期。 - previously recorded
先前錄製的
例句：This program is a previously recorded broadcast.
這個節目是先前錄製好的廣播。 - previously established
先前建立的
例句：We must adhere to the previously established guidelines.
我們必須遵守先前製定的指導方針。 - previously unexplored
以前未探索的
例句：The team is venturing into previously unexplored territory.
該隊正在冒險進入以前未探索過的領域。 - previously agreed
先前同意的
例句：We will proceed according to the previously agreed plan.
我們將按照先前同意的計劃進行。 - be previously convicted
先前被判有罪的
例句：He was previously convicted of theft but has since turned his life around.
他先前被判竊盜罪，但此後已經改過自新。
例句：
- This artifact was previously displayed in another museum.
這件文物先前在另一個博物館展出過。 - She was previously employed as a teacher before becoming a writer.
她在成為作家之前曾擔任教師。 - The building was previously used as a factory, but it’s now a shopping mall.
這棟建築以前是工廠，現在是購物中心。 - He previously lived in Chicago but has since moved to New York.
他以前住在芝加哥，但後來搬到了紐約。 - The athlete previously held the world record in this category.
該運動員此前曾保持過該類別的世界紀錄。 - I had previously thought the project was difficult, but it turned out to be easy.
我先前認為這個專案很困難，但結果卻很容易。 - The information was previously confidential but has now been released to the public.
這個資訊先前是機密的，但現在已經公開。 - She had previously warned him about the risks, but he didn’t listen.
她先前曾警告他這件事有風險，但他沒有聽。 - The product was previously sold only online, but now it’s available in stores.
該產品以前只在網上銷售，但現在可以在商店購買。 - He previously studied medicine but later switched to economics.
他之前學的是醫學，後來改學了經濟學。
同義詞：
- formerly 以前地、從前地 adv. 強調某人或某事在過去的身份或狀態。
例句：The building formerly known as the city’s tallest has been surpassed in height.
這座曾經被稱為該市最高建築的建築的高度已被超越。 - earlier 早些時候 adv. 指在特定時間之前或早於某一時間點發生的事情。
例句：I had seen her earlier at the grocery store.
我早些時候在雜貨店見過她。 - before 以前 adv. 用於指事件在時間上或順序上在某事物之前。
例句：He had never traveled abroad before.
他以前從未出國旅行。 - once 曾經 adv. 表示在過去某一時刻或期間發生過一次或多次。
例句：She once lived in New York but moved away.
她曾經住在紐約但搬走了。 - hitherto 到目前為止 adv. 強調某事一直持續到現在或某一特定點。
例句：Hitherto, there has been no evidence to prove the theory.
到目前為止，還沒有證據能證明這個理論。
衍生字：
- previous 以前的、先前的 adj.
