| 释义 |
词典释义：
thirty
num. 三十；三十个；三十岁；三十几；三十年代；三十几岁；时速三十英里；三十号
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序数词
thirtieth
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复数
thirties
网络释义
三十;可以作口渴状;口渴状;三十分;三十年代;
双语例句
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I usually do my homework at around five thirty.
我通常5点半左右写作业。
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The cost of swimming classes is thirty dollars per semester.
游泳课的费用为每学期30美元。
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He was a young man at his early thirties.
他是个三十岁出头的年轻人。
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Mozart clearly enjoyed good health throughout his twenties and early thirties.
很明显 莫扎特在他二十多岁和三十出头的时候身体健康
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Exercising only thirty minutes every day is very good for your health. It's so worth it.
每天只花30分钟锻炼就能强身健体。这30分钟真是太值了。
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By sunset we had covered thirty miles.
到日落时我们已走了三十英里。
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Some thirty people attended the funeral.
大约有三十人参加了葬礼。
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She thinks nothing of walking thirty miles a day.
她认为一天步行三十英里不足为奇。
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She's in her mid-thirties—thirty-six to be exact.
她三十五岁左右—确切地说是三十六岁。
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He was struck down by cancer at the age of thirty.
他三十岁那年被癌症夺去了性命。
百科
1. 30（三十，thirty）是一个阿拉伯数字，29与31之间的自然数、正整数，偶数，有理数。因数分解式为30=2*3*5。
2. 《Thirty》是由歌手林原惠美演唱的一首日语歌曲，于2000年6月21日发行，收录于专辑《VINTAGE A》中。
释义
cardinal number
the number equivalent to the product of three and ten; ten less than forty; 30
三十；三十个
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thirty or forty years ago
三四十年前
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thirty were hurt
有３０人受伤
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thirty of her school friends.
她的30位校友。(Roman numeral: xxx or XXX. 罗马数字:xxx或XXX.)
(thirties)the numbers from thirty to thirty-nine, especially the years of a century or of a person's life.
三十几；三十年代；三十几岁
thirty miles an hour
时速三十英里
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doing about thirty.
开车时速约３０英里。
a size of garment or other merchandise denoted by thirty
（衣服等商品的）三十号。
易错必背词
词源
"Old English thrītig （see ＴＨＲＥＥ， -ＴＹ2）. The spelling with initial thi-is recorded in literature in the 15th cent., and has been the prevalent form since the 16th cent."
考纲分布
考纲释义
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num. 三十
真题例句：
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Another woman says, “He’s tall and thin with blonde hair. He’s about thirty years old.”
另一个女人说：“他很高很瘦，金色头发。 他大约三十岁。“
[2019年 成都A卷 完形填空A]
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At eight it's time for the news, Jim finishes his work at ten thirty.
八点，到了新闻时间。吉姆在十点三十分时完成了他的工作。
[2018年 甘肃省兰州卷 听力]
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He's thirty-five.
他35岁了。
[2018年 河北省 听力]
考纲分布
考纲释义
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num. 三十; 三十个
真题例句：
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The day the post went live, Pruitt received thirty used bicycles.
《华盛顿邮报》上线的那天，Pruitt收到了30辆二手自行车。
[2021年 天津卷 完形填空]
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The path to Dawson was covered with thirty feet of wet snow that could fall without warming.
通往道森的小路上覆盖着30英尺厚的湿雪，即使天气不暖和，这些湿雪也会陷下去。
[2018年 全国卷3 阅读理解]
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Thirty Parisians pay just under $2 (plus drinks) per session.
30名巴黎人每次只付不到2美元（外加饮料）。
[2015年 全国卷1 阅读理解]
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n. 三十余岁; 三十年代
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