reply to sb还是reply sb?

请问“回复某人”是用reply sb 还是 reply to sb.还有其他固定说法吗? reply to sb和reply sb的区别 reply 的用法?教科书上只有reply to sth.那么sb呢?是to sb还是直接加?顺带介绍点reply的用法 1.reply可以加to sb 而answer不行对吗? answer=reply to还是reply? reply me 还是 reply to me reply with reply to 区别～ reply to sth answer To reply to an invitation reply 是及物动词还是不及物动词? 请问英语高手in reply to和reply to Looking forward to your reply.