collect 的过去式是 collected。
collect 的词根是 "col-" ，来源于拉丁语 "col-" 或 "colere"，意思是 "聚集，收集"。
例句：
I collected all the books from the pbrary. (我从图书馆收集了所有书)
She collected all her things and left the house. (她收集她的所有东西，离开了房子)
They collected money for charity. (他们为慈善事业收集了金钱)