In the meantime, the uterus goes through two phases: the menstrual and proliferative phase.

与此同时，子宫经历着两个时期：月经期和增殖期。

It's followed by the proliferative phase, during which the rising levels of ovarian estrogen make the functional layer of the endometrium thicken and sprout endometrial glands.

之后是增殖期，伴随卵巢分泌雌激素的上升，子宫内膜功能层增厚，子宫内膜腺体生长。