Question

30的英文怎么说？

Answer 1

thirty 英[ˈθɜːti] 美[ˈθɜːrti]
num. 三十; 三十几; 三十年代;
[例句]Mozart clearly enjoyed good health throughout his twenties and early thirties.
显然，莫扎特在二十几岁到三十刚出头时，身体非常好。
[其他] 复数：thirties

Answer 2

就是thirty。