1
a/one thousand + noun
不定冠词a表示约数，one表示精确数目
a thousand years
一千年
数值等于1,000 = 10 × 100 = 103(科学E记数法中为1 E+3)。
先理解核心含义，再看它在真实句子里的用法。
数值等于1,000 = 10 × 100 = 103(科学E记数法中为1 E+3)。；千
A numerical value equal to 1,000 = 10 × 100 = 103 (1 E+3 exactly—in scientific E notation.)
a thousand years
一千年
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数值等于1,000 = 10 × 100 = 103(科学E记数法中为1 E+3)。
A numerical value equal to 1,000 = 10 × 100 = 103 (1 E+3 exactly—in scientific E notation.)
A thousand guests were invited to the wedding.
婚礼邀请了一千位宾客。
The new laptop costs nearly three thousand yuan.
这台新笔记本电脑花了将近三千元。
The child can count from one to a thousand.
这个孩子能从一数到一千。
不定冠词a表示约数，one表示精确数目
a thousand years
一千年
表示大量，不精确
thousands of people
成千上万的人
数词与千连用表示确切数目
two thousand dollars
两千美元
Not this
There are two thousands students in the school.
Use this
There are two thousand students in the school.
在数字后，thousand 应保持单数形式，不加 s。
Not this
I have thousand books at home.
Use this
I have a thousand books at home.
表示‘一千’时，应使用‘a thousand’或‘one thousand’，不能省略冠词。
Not this
Thousand of people attended the concert.
Use this
Thousands of people attended the concert.
表示‘成千上万’时，应用复数形式 thousands of，而不用单数 thousand。
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use thousand naturally, then get feedback on meaning, tone, grammar, and phrasing.
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Collins 词频等级为 5，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 DICTIONARY_API_DEV, ECDICT, WIKTIONARY.