The treatment of infertility is largely dependent on the ability of couples to pay.对不孕不育的治疗很大程度上视乎夫妇的经济能力。Endometritis is a cause of infertility.子宫内膜炎是不育的原子.Among the new drugs approved in 2000 was Serono's Ovidrel ...
Children at school receive coloured stars for work well done.学校里的孩子表现得好会得到彩色星星。Stars appeared everywhere, spinning round and round, faster and faster.满眼金星乱转，而且越转越快。The stars must have formed 10 to 15 billion years ago.这些...