英语翻译I wanted to reward the old woman for the trouble I had caused her.请先分析句子结构,然后解释cause在句中什么意思,最后标准翻译该句子,

结构分析：I 是主语,wanted to reward 是谓语,the old woman是宾语；for the trouble是介词短语,解释wanted to reward the old woman的原因, I had cased her 是定语从句,定the trouble我给这位老妇人添了麻烦,所以...