twentieth /ˈtwentiiθ/ num. 1.第二十 (常与the连用)He is the twentieth on the list.在名单上他是第20个。2.二十日(the连用)I was born on the twentieth of June. 我出生于620日。3.二十分之一:He has a twentieth share of the money.他有那笔钱的二十分之一。

 twenty /ˈtwenti/ I. num.二十:I entered a university at the age of twenty. 20岁时进大学。 ‖II.n.二十多岁;二十年代(pl.形式)She is in her early twenties. 20刚出头。He was a famous writer in the twenties/20’s of the 20th centrury. 他是上个世纪20年代一位著名作家。