人体分泌的镇痛剂the body's pain suppressors癌症疗法及强镇痛剂如吗啡也会引发搔痒.Cancer treatments and strong painkillers like morphine can also cause itchiness.镇痛剂一种药剂, 如止痛药, 减轻疼痛.An agent, such as an analgesic drug, that relieves pain....
贼鸥是飞行速度很快的黑色鸟类，尾部长而分叉。Jaegers are swift black birds with long forked tails.这条铁路在那儿分叉通向甲 乙 两地.There the railway forks to A and B ( places ).在那条路就要分叉的地方有一家百货商店.There is a department store just before the road bisects....