她怀孕已经三个月了。
She has been pregnant for a trimester.
每三个月我们会进行一次评估。
We conduct an evaluation every trimester.
这个课程分为三个月的学期。
This course is divided into trimester terms.
她在怀孕的前三个月发生了流产。
She had a miscarriage in her first trimester.
胚胎在孕期的前三个月发育迅速。
The embryo develops rapidly during the first trimester.
