trimester UK [trɪ'mes.tər] UK [traɪ-] US [traɪ'mes.tɚ] noun countable ■a three-month period 三个月时间 ■any of the three three-month periods that a human pregnancy is divided into (人类妊娠的)三月期•The second trimester is generally the easiest part of a pregnancy.一般说来,第二个三月期是怀孕期间最轻松的一段时间。 ■US ■any of the three-month periods into which the school or college year is sometimes divided (一学年分为三学期的)一学期•Many students arrange internships or work-study placements during the second trimester.许多学生在第二学期安排实习或半工半读。 Compare semester |