| 释义 |
thir.tyH5WV:7ti, $5WV:r7tideterminer, pronoun, n(the number) 30三十twenty-nine, thirty, thirty-one二十九，三十，三十一I'm going to be thirty on my next birthday.下一个生日我三十岁。I think there'll be about thirty (people) at the evening reception.我想晚宴上将有三十人左右。Is that number a thirty or a fifty? [C]那数字是三十还是五十？(saying) 'Thirty days has September, April, June and November (all the rest have thirty-one, except for February which stands alone)' is used to help remember the number of days in each month of the year. 九月、四月、六月和十一月有三十天。"Thirty-nine Steps" (title of a book by John Buchan, 1915)《三十九级台阶》（约翰·巴肯1915年所写书名）
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