reproduce
reproduce/ˌri:prəˈdju:s/vt.1.复制：reproduce a copy of the material复制一份这材料；reproduce a painting复制一幅画2.繁殖，生殖：reproduce one’s kind繁殖Most plants reproduce by ···
reptile
reptile/ˈreptail/n.［c］爬虫动物，爬虫：reptile eggs爬行动物的卵Snakes and crocodiles are both reptiles.蛇和鳄鱼都是爬行动物。
republic/republican
republic/riˈpʌblik/n.[c]共和国:autonomous(independent) republic自治（独立）共和国；the People’s Republic of China中华人民共和国Most of the countries in the world are republics.世···
reputation
reputation/ˌrepjuˈteiʃən/n.［u］名声，名望(可加不定冠词)：a man of high reputation名誉很好的人；have a reputation for kindness以善良著称；a man of evil reputation臭名昭著的人；···
request
request/riˈkwest/ I.vt.请求，要求request sth. (from/of sb.) (向某人)请求某事物：She requested nothing of me.她没有向我要求什么。request sb. to do sth.请求(某人做某事)：The teacher···
require/requirement
require/riˈkwaiə/vt.需要，要求；规定（跟名词/代词、v-ing主动式或不定式的被动式、从句和不定式的复合宾语）：a required subject (AmE.)必修课I require warm clothing for the winter.我···
rescue/rescuer
rescue/ˈreskju:/ I.vt.援救；救出(from)：［考句］All their attempts to rescue the child from the burning building were in vain.他们所有力图营救失火建筑里小孩的努力都没有奏效。‖II.···
research
research/riˈsə:tʃ/ I.n.［u］&［c］调查，研究：do research work做研究工作He has carried out extensive research into/on renewable energy sources.他就可再生能源进行了广泛的研究···
resemblance/resemble
resemblance/riˈzembləns/n.［c］&［u］相似，形似：have s striking resemblance to…酷似；bear no (some) resemblance to sb.(sth.)与某人(某物)没有(有点)相似之处There are striking···
resent/resentful/resentment
resent/riˈzent/vt.对…表示愤恨，怨恨（跟n./pron., v-ing）：resent sb.’s action对某人的行为不满He resented his friend's remark.他怨恨他朋友所说的话。He resents being called a ···
