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1.anesthesia (=美anaesthesia) n.麻醉(loss of sensation) 词根记忆：an(无)+esthe(感觉)+sia--无感觉--麻醉 例:Surgical patients operated on at night need less anesthesia. 同根词：anesthetic(a．麻醉的；n.麻醉剂)：aesthetics(n.美学) 2.animate n.有生命的(alive)；v.使有生气(to give spirit and support to);绘制（动画片）(to make or design in such a way as to create lifelike movement) 联想记忆：anim(生命)+ate--使图画有生命--绘制（动画片） 例:animated cartoon动画 3.animosity n.憎恶，仇恨(enmity) 联想记忆：anim(生命)+osity--用整个生命去恨--憎恶，仇恨 例:Much animosity existed between the two opponents. 4.announce v.宣布，发表(to proclaim)；通报…的到来(to give notice of the arrival) 词根记忆：an+nounce(讲话，说出)--说出来--宣布 例:The OPEC had long been expected to announce a reduction in output to bolster sagging oil prices. 派生词:announcement(n.公告；发表) 同根词：renounce(v.宣布放弃) 5.announcement n.宣告(the act of announcing or of being announced);公告，通告(a public notification or declaration) 词根记忆：来自announce(v.宣布；述说) 例:The following appeared in an announcement issued by the publisher of The Mercury a weekly newspaper. | 
