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 :...
Car horns toot as cyclists dart precariously through the traffic.骑车人危险地在车流中飞速穿行时，汽车喇叭的嘟嘟声响成一片。The series of steep hills sapped the cyclists'strength.一连串坡度很大的小山耗尽了骑车人的气力.Cyclists who swerve to avoid dogs may fall off...
失眠有时是某些药物产生的副作用。Sleeplessness is sometimes the side effect of certain medications.他接受放射治疗，副作用很大。He reacted very badly to the radiation therapy.该药的副作用可能包括排便失禁。The drug's side-effects can include involuntary defecatio...