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

与此，宫经历着两个期：月经期和期。

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.

之后是期，伴随卵巢分泌雌激素的上升，宫内膜功能层厚，宫内膜体生长。

In many tissues, continuous proliferation is restricted to a subpopulation of cells, the stem cells, which undergo self-renewal, as well as differentiation, into cell types with a more restrictive proliferative potential.

在许多组织中，持续仅限于细胞亚群，即经历自我更新以及分化的干细胞形成具有更多限制潜力的细胞类型。

Proliferative verrucous leukoplakia can turn into a particular type of squamous cell cancer called verrucous carcinoma, and it's also sometimes called snuff-dipper's cancer since it is more common among users of snuff and other forms of chewing tobacco.

生疣状白斑可发展成一种特殊的鳞状细胞癌，即疣状癌，有也叫作“鼻烟”癌，因为这在鼻烟和其它形式的嚼烟使用者中更常见。