他总是这样傻傻地咧嘴笑。He always had this inane grin.他一本正经地咧嘴笑了笑。He showed his teeth in a humourless grin.弗里达咧嘴笑了，捏了捏他的屁股。Frieda grinned, pinching him on the butt....
No one knows why a fetus is not automatically rejected by the mother’s immune system.没有人知道为什么母亲的免疫系统不会自动排斥胎儿。Modern medical technology like type-B ultrasonic checks can reveal the fetus gender.现在的医疗仪器例如B超是可以分辨出胎儿的性别的。Gro...
Active carbon deoxidizer has been developed on the principle of electrochemical oxidation.作者根据电化学氧化原理研制出活性炭脱氧剂.A dehumidifying deoxidizer containing oxygen - deficient cerium oxide and a dehumidifier is provided.本发明提供一种除...
Hematopoiesis of the other blood elements occurs in the fetal spleen.其他血液成分的生成发生在胎儿脾脏.Leukemias typically fill up the marrow with abnormal cells, displacing normal hematopoiesis.典型的白血病有很多不正常的细胞充满骨髓, 取代正常的造血功能.Objective :...