【化】 cyproterone
annulus; hem in; link; loop; ring; surround
【计】 ring up; toroid
【化】 ring
【医】 annuli; anulus; band; circle; circulus; cycle; cyclo-; gyro-; loop; orb
ring; verge
third
【化】 progestin
【医】 beta factor; corporin; corpus luteum hormone; flavoluatn
luteal hormone; luteosterone; pregnendione; progestational hormone
progesterone; progestin; progestone