Hello, Mary?
喂，是玛丽吗?
Yes, speaking.
是的，请讲。
This is Roland. Miss Lee telephoned. She asked meto ask you if you would be able to meet her today at 3:30 p.m..
我是罗兰，李女士刚来过电话，她要我问你是否能在今天下午三点半和她见面。
Sorry, but I'll have a meeting then. Please tell her my phone number and I'll explain it to her personally.Thanks for the message.
抱歉，我有一个会。请告诉她我的号码，我亲自给她解释。谢谢你的口信。
explain v.讲解，解释，说明
personally ad.亲自;就个人来说