1.recipient n．接受者(receiver)；a.（愿意）接受的(receptive)
例：The recipient of the lottery's grand prize quit her job.

2.reciprocal a．相互的；相應的(corresponding)；n．【數】倒數(either of a pair of numbers whose product is one)；互相起作用的事物(sth. in a reciprocal relationship to another)
聯想記憶：相互( reciprocal)乘積為1的--對數互為倒數
例：The services that are provided should be reciprocal to the amount of taxes that are paid.

3.reclaim v.收回(to recover)；恢復（土地）(to restore to a previous natural state)
詞根記憶：re(重新)+claim(要求)--重新要求--收回
例：The manager reclaimed decision-making authority.// It'll be a costly project to reclaim surface coal mines.
派生詞：reclamation(n.改造)

4.recluse n.隱士(a person who leads a secluded or solitary life)；a．隱居的(marked by withdrawal from society)
詞根記憶：re+cluse(關閉)--重新把門關上--隱居的
例：Although the bite of the brown recluse spider is rarely fatal, it causes chronic flesh wounds and poses the greatest danger to infants and the elderly, who are particularly vulnerable to its poison.
派生詞：reclusive(a．隱居的)

5.recommend n.推薦；建議(to advise)
聯想記憶：re+com(共同)+mend(修)--這本書是大家一修再修的成果，強力推薦--推薦
例：We should recommend the use of such identification badges to all of our clients.

6.rocommendation n．推薦(the act of recommending)；推薦信(sth. that recommends or expresses commendation)
詞根記憶：來自recommend(v.推薦；介紹)
例:Such a recommendation could help us get the Windfall account by demonstrating to Windfall the rigorousness of our methods.

7.reconcile v.調停，調解(to settle)；調和，使一致(to make consistent)；使協調，使和解(to restore to harmony or friendship)
聯想記憶：re+concile(看作council委員會)--召開委員會--調停，調解
例：Since the couple could not reconcile their differences, they decided to get a divorce.//Researchers are trying to reconcile the experimental result with their theory.

8.reconvene v.再集會(to gather again)
詞根記憶：re(重新)+convene(集會)--再集會
例：Congress will reconvene in two weeks.

9.recoup v.補償（to compensate）；恢復(to make good or make up for sth. lost)
例：The investor could not recoup the money she had spent on the stock.