单词：trimesters
(trimester 的复数) n. 三个月, 一学期
[医] 三个月, 三月期
[医] 三个月, 三月期
plural of trimester
n. a period of three months; especially one of the three three-month periods into which human pregnancy is divided
n. one of three divisions of an academic year
n. a period of three months; especially one of the three three-month periods into which human pregnancy is divided
n. one of three divisions of an academic year