问题描述: could be trusted to know what they were 1个回答 分类:英语 2014-11-03 问题解答: 我来补答 应该前面还有个主语吧,XX可以被信任为知道他们(或者它们)是干什么的如果还有问题,可以找我哦~ 展开全文阅读