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: <Bold>xxx</Bold> or <Bold>XXX</Bold>. 罗马数字:<Bold>xxx</Bold>或<Bold>XXX.</Bold>)
(
三十几;三十年代;三十几岁
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a woman in her thirties 一个三十多岁的女人
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she was a famous actress in the thirties .她是30年代的著名演员。
thirty years old
三十岁
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I've got a long way to go before I'm thirty .我离30岁还早着呢。
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。
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thirty percent of + 名词 百分之三十的...
真题例句:
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the thirties 三十年代
真题例句:
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one's thirties 某人三十几岁
真题例句:
"Old English