adj (1)感到抱歉(后悔)的(full of shame and regret， esp about a past action)[A(for/about)][作pred]：be～for what one has done/giving sb so much trouble 对自己所做的事/给某人带来诸多的麻烦感到抱歉;be～about what happened/sb's misfortune/sb's departure 对所发生的事情/某人的不幸/某人的离开感到遗憾;

(2)感到悲伤(遗憾)的(feeling or expressing sadness or regret)[A+to-inf，A+that][作pred]：be～to hear of sb's mother's death/have disturbed sb 听说某人的母亲去世很难过/很抱歉打扰了某人;I'm very～to say that I can't agree. 很遗憾，我不能同意。be so～that this has occurred/one had to leave 发生了这事非常抱歉/很可惜自己不得不离开;〖同〗regretful，sorrowful，sad，unhappy;〖反〗happy，cheerful，unrepentant，joyous;

(3)对不起，抱歉(表示礼貌的拒绝或不赞成)(used to express mild refusal or disagreement，etc)[无comp][作pred]：I'm～，but I can't agree. 很遗憾，我无法赞同。“May I come in?” “S～，you can't.” “我可以进来吗?” “对不起，你不能进来。”

(4)可怜(悲)的，很差的，糟糕的，不体面的(pitiful，poor，unsatisfactory or useless)[作attrib](通常derog)：a～horse/sight/excuse/exhibition/state of affair 劣等马/可怜的景象/不高明的借口/很糟糕的展览/事情一塌糊涂;What a～situation! 情况多么糟糕呀!(car) be in a～state/condition (汽车)破旧不堪;The house is in a～mess. 这房子又脏又乱。〖同〗miserable，sad，pitiful，pitiable;〖反〗wonderful;

be/feel sorry for sb 对…… 表示同情：We felt deeply～for him in his great trouble. 我们对他遇到巨大麻烦感到深切的同情。

interj (1)对不起，抱歉(used when apologising or making excuses，etc)：S～，I have kept you waiting. 对不起，让你久等了。

(2)(用于未听清楚对方的话时请再说一遍)(used to ask sb to repeat sth one hasn't heard properly)[尤BrE]：“I'm unwell.”“S～?” “I said，I am unwell.” “我有些不舒服。” “你说什么? ” “我说，我有些不舒服。”