1. render sth(for sth) ;rendersth (to sb) give sth in return,or exchange,or as sth which is due 给予某物作为报偿或用以交换;回报;归还
render homage,obedience,allegiance,etc.表示敬意、顺从、效忠等：
a reward for services rendered 服务的酬金
render good for evil 以德报怨
render insult for insult 以侮辱对侮辱
render sb a service/render a service to sb 为某人服务
render help to disaster victims 向灾民提供援助
render thanks to God 感谢上帝
2. present or send in (an account)for payment 递交或开出(帐单)：
account rendered $50 开出50美元的帐单
3. cause (sb/sth) to be in a certain condition 使(某人[某事物])处于某种状况：
rendered helpless by an accident 因出事故而束手无策
Your action had rendered our contract invalid.你们的这种做法导致双方的合同失败。
