explain不能接双宾语。若一定要表示“对(向)某人解释某事”,就要用explain sth. to sb.或explain to sb. sth.,介词短语to sb.是表示对象的状语;如果宾语过长,to sb.通常插在谓语和宾语之间。例如:He explained to me the rules. = He explained the rules to me. 他向我解释了这些规则。He then explained to us what it was all about. 接着他给我们解释了这是怎么一回事。