We can think these changes concerned with the function of estrin.
2
它们阻断许多乳癌增殖所需要的雌激素的作用。
They work by blocking the estrogen action, which is required for the proliferation of most breast cancers.
3
近几年,有些研究表明,它们能浸出一些有雌激素的作用的化合物。
In recent years, there have been several studies showing that PET can leach some kind of compound that seems to have estrogenic activity - that seems to act like an estrogen.