后缀-ee附于动词后，表示动作的受动者。与之相应，动作的施动者则由后缀-er／-or表示。如：由动词trust加后缀trustee（受托人）与truster（信托人）；
名词后缀-er和-ee在英语中很常见，掌握它们的用法，有利于我们更快、更准确地记单词。
“-er”
1. A person or thing that does: lover, computer, etc.
2. A person or thing that has the thing or quality mentioned: three-wheeler, foreigner, etc. 
3. A person concerned with: astronomer, philosopher, etc.
4. A person belonging to: New Yorker, villager, etc.
“-ee”
1. A person who receives or benefits from a specified action, with the base being a transitive verb(及物动词). For example, addressee, employee, etc.
2. Mark the performer of an act, with the base being an intransitive verb(escapee, returnee) or, less frequently, a transitive verb(attendee) or another part of speech (absentee).
练习: 选择恰当的单词并用其正确形式完成下列句子, 然后在句子后的括号内写出所填单词的汉语意思。
  trainee   teenager   examiner  committee  interviewee
 
1. My first job was as a graduate       with a bank.  (       )
2. Since his parents died early, he had to earn his own living when he was a      . (       )
3. H       e is not the interviewer, but the      .  (       )
4. The papers are sent to       .  (       )
5. The       has decided to dismiss him.  (       ) 
 
1. trainee; 实习生   2. teenager; 青少年  3. interviewee; 参加面试者 
4. examiners; 考官  5. committee; 委员会
原型                      动作方                       承受动作方
pay 付款                payer 付款人                 payee收款人   

interview 采访        interviewer 采访者          interviewee 受访者   
employ 雇佣          employer 雇主              	employee 雇员   

examine 考试         examiner 考官   				examinee 考生  

 trust 信托   			truster / trustor 信托人   			trustee 受托人   

address 寄信   		addresser 发信人   			addressee 收信人  

 train 培训   			trainer 培训人   				trainee 受训者  

lease 出租   		lessor（注意or后缀）出租人   	lessee 承租人  

mortgage 抵押   		mortgager 抵押人   		mortgagee 接受抵押者  

 appoint 任命   		appointer 任命人   		appointee 受命人      
er后缀，表示的是 执行 动作的人
ee后缀，表示的是 承受 动作的人