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forty [plural noun]
There are forty students in the class.
班上有四十名学生。
基数,位于三十九之后,四十一之前,用罗马数字表示为XL,阿拉伯数字为40。
先理解核心含义，再看它在真实句子里的用法。
基数,位于三十九之后,四十一之前,用罗马数字表示为XL,阿拉伯数字为40。；四十；四十个
The cardinal number occurring after thirty-nine and before forty-one, represented in Roman numerals as XL and in Arabic numerals as 40.
There are forty students in the class.
班上有四十名学生。
基数,位于三十九之后,四十一之前,用罗马数字表示为XL,阿拉伯数字为40。
The cardinal number occurring after thirty-nine and before forty-one, represented in Roman numerals as XL and in Arabic numerals as 40.
There are forty students in our English class.
我们英语班有四十名学生。
The book has forty chapters, so I read a few pages every day.
这本书有四十章，所以我每天读几页。
She turned forty last month and celebrated with a small dinner.
她上个月满四十岁，办了一顿小型晚宴庆祝。
There are forty students in the class.
班上有四十名学生。
She is forty years old.
她四十岁。
Forty percent of the people agreed.
百分之四十的人同意。
Not this
She is fourty years old.
Use this
She is forty years old.
拼写错误：基数词'forty'的正确拼写不含字母'u'，常见错误为拼成'fourty'。应使用拼写'forty'。
Not this
He celebrated his forty birthday.
Use this
He celebrated his fortieth birthday.
序数词混淆：表示'第四十'应使用序数词'fortieth'，而非基数词'forty'。在描述生日、楼层等序数概念时，需用序数词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
打盹儿，小睡
I need to catch forty winks before the meeting.
开会前我需要打个盹儿。
四十年
They celebrated forty years of marriage.
他们庆祝结婚四十周年。
百分之四十
Forty percent of the students passed the exam.
百分之四十的学生通过了考试。
四十美元
The book costs forty dollars.
这本书售价四十美元。
四十英里
We drove forty miles to the beach.
我们开车四十英里到海滩。
四十天
The project will take forty days to complete.
这个项目需要四十天完成。
打盹，小睡
I need to catch forty winks before the meeting.
开会前我需要打个盹。
人生始于四十
He took up skydiving at 40—life begins at forty!
他40岁开始跳伞——人生始于四十！
人生四十始。
She decided to start her own business at 40, believing that life begins at forty.
她决定在40岁时创办自己的企业，相信人生四十始。
阿里巴巴与四十大盗
The story of Ali Baba and the Forty Thieves is a classic tale from One Thousand and One Nights.
阿里巴巴与四十大盗的故事是《一千零一夜》中的经典传说。
Use forty naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
four去掉u再加ty就是forty（四十）。
neutral; contexts: counting, ages, prices; note_zh: 通常用于计数、年龄、价格等通用场景，无明显风格倾向。
These words all share the '-ty' ending and the final /ti/ sound, but they have different stressed vowels, so they do not perfectly rhyme with 'forty' (e.g., thirty has /ɜːr/, forty has /ɔr/).
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.