第1到第50的英语怎么写
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firstsecondthird fourthfifthsixthseventheighthninthtentheleventhtwelfththirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenthtwentieth剩下来21~29,31~39,41~49,分别都是twentieth,thirtyiet...