单词 | thirty |
释义 | Word Frequency thirty(ˈθɜːtɪ) nounWord forms: plural -ties 1. the cardinal number that is the product of ten and three See also number (sense 1)2. a numeral, 30, XXX, etc, representing this number 3. (plural) the numbers 30–39, esp the 30th to the 39th year of a person's life or of a century 4. the amount or quantity that is three times as big as ten 5. something representing, represented by, or consisting of 30 units determiner 6. a. amounting to thirty thirty trees b. (as pronoun) thirty are broken Word origin Old English thrītig; see three, -ty1 |
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