n (1) (肉体上的)痛，疼痛(unpleasant feeling of suffering， as a result of injury， disease， etc， usually localized in some part of the body) [U，C]：feel no/some/a lot of～感觉不/有些/很痛;cry/scream with～痛得哭/叫; a cry of～痛苦的喊叫; I couldn't sleep for～. 我痛得不能入睡。If the～comes on again， give him another dose. 如果还痛，再给他吃一剂药。I've got a～in my tooth/my stomach/my back/my chest. 我牙/胃/背/胸痛。Her～s had recurred. 她的疼痛复发了。〖同〗ache，aching，discomfort，pinch;

(2) (精神，感情上的)痛苦，悲痛(mental or emotional suffering; distress) [U]：He couldn't bear the～of being separated from his family. 他忍受不了与家人分离的痛苦。May this country never again know the～of war. 但愿这个国家再也不会经受战争的苦难。It will cause her infinite～. 这将给她带来无穷无尽的痛苦。〖同〗suffering，misery，sorrow，sadness;

(3) 讨厌的人或事(irritating or annoying person or thing)[C](infml)： She is a real～. 她真叫人讨厌。You give me a～. 你真叫我讨厌。I've missed the last train—what a～! 我误了最后一趟火车，真倒霉!

(4) 努力，劳苦(trouble， care， or effort)[pl]：He has obviously taken great～s to study the practical details. 他显然在研究其实用的细节方面作了极大的努力。No～s were spared in the workmanship. 在做工上不遗余力。He was at～s to emphasize the nonpolitical character of the visit. 他极力强调这次访问的非政治性。 All he got for his～s was ingratitude and suspicion. 他辛苦一场得到的却是忘恩负义和猜疑。

a pain in the neck 讨厌的人或事：People who are always complaining are a～in the neck! 喋喋不休抱怨不止的人真讨厌!

on/under pain/penalty of sth (fml) 冒着受到某种惩处的危险：He was banished from his country on～of death. 他被驱逐出境不准回国，否则处以死刑。

→′painful adj (使感觉)痛苦的，费力的;辛苦的;′painfully adv 痛苦地;′painfulness n 痛苦;′painless adj 无痛苦的;′painlessness n 无痛苦;′painstaking adj 苦干的;费力的;煞费苦心的;

vt 使痛苦(cause suffering or upset to (someone)) [T+n， 无pass]：It～ed her to admit that she was wrong. 承认自己错了使她很痛苦。Your disapproval/Your sarcasm～s me more than I can say. 你的拒绝/讥讽给我造成的痛苦难以言表。Does your ankle still～you? 你的踝关节还痛吗? 〖同〗ache，hurt，grieve，annoy;

【辨异】pain与ache的区别见ACHE。