1
purchase something
直接接宾语，表示购买某物。
I purchased a new computer.
我购买了一台新电脑。
购买
purchases — third person singular of purchase
先理解核心含义，再看它在真实句子里的用法。
购买
to buy something
I purchased a new computer.
我购买了一台新电脑。
purchase
Base
原形
purchases
3rd person
第三人称单数
purchasing
-ing
现在分词
purchased
Past
过去式
purchased
Past participle
过去分词
They purchase tickets online.
他们在线购买门票。
She purchased a new car yesterday.
她昨天购买了一辆新车。
We have purchased the software.
我们已经购买了该软件。
规则动词，过去式及过去分词加-ed。
I purchased a new laptop yesterday.
我昨天购买了一台新笔记本电脑。
She purchases fresh vegetables every weekend.
她每个周末购买新鲜蔬菜。
They are purchasing airline tickets for their vacation.
他们正在为度假购买机票。
直接接宾语，表示购买某物。
I purchased a new computer.
我购买了一台新电脑。
用from引出来源。
She purchased the necklace from a local store.
她从当地商店购买了那条项链。
用for引出受益者。
He purchased a gift for his wife.
他为妻子购买了一份礼物。
Not this
I purchased car yesterday.
Use this
I purchased a car yesterday.
学习者受中文影响，忘记在可数名词前加冠词"a"；英语中可数名词单数前必须加冠词。
Not this
I purchased a book to the store.
Use this
I purchased a book from the store.
"购买"的动作方向是从商店到买家，故应用介词"from"表示来源，而非"to"表示方向。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
购买商品
We need to purchase goods for the store.
我们需要为商店购买商品。
购买产品
She decided to purchase a new product from the website.
她决定从网站购买一款新产品。
在线购买
Many people prefer to purchase online for convenience.
许多人为了方便而喜欢在线购买。
从...购买
You can purchase from our official store.
您可以从我们的官方商店购买。
用现金购买
He wanted to purchase the item with cash.
他想用现金购买这件商品。
Use purchases naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
语域：formal 常见场景：购物、商业交易、法律文件、正式场合 动词purchase多用于正式或官方的场合，如商业合同、法律条款或政府文件，比日常口语中的buy更正式。在一般购物中也可使用，但比较书面化。
The words 'surface' and 'service' share a similar ending spelling with 'purchase' but have different pronunciations.
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Collins 词频等级为 4，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT.