Hormone replacement therapy is very important and should be instituted early.激素替代治疗非常重要，应该及早开始。Oestrogen is a female sex hormone.雌激素是一种雌性荷尔蒙。This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地...
Their marriage is getting a little frayed around the edges.他们的婚姻开始出现裂痕。Nerves became severely frayed when air traffic problems delayed the flight.当航班由于空中交通问题而延误时，人们变得异常烦躁起来。The champion, too, looked frayed at the edges.冠...