n(1)疼痛(dull steady pain)[C](常用于合成词)：have an～in one's (or the) stomach (chest/heal/tired feet) 胃(胸口/脚后跟/疲劳的双脚)痛;There were～s in his joints.他的关节痛。feel an～in one's bosom 觉得胸部痛;I have～s and pains all over.(My body is all～s and pains.)我浑身痛。A dentist can fix that～.牙医能治好那种疼痛。suffer from earache/toothache/backache 耳朵/牙齿/背痛;have a headache/an earache/a stomach-ache 头/耳朵/胃痛;〖同〗pain，hurt;

(2)忧伤，怜恤，渴望(feeling of sadness，pity or longing)[C]：I don't have any right to add to the～of her heart.我没有权利使她更伤心。the～in one's heart 心中的忧伤;the heart～of losing a child 失去孩子的伤心;

→′achy adj 疼痛的;

vi(1)感觉疼，疼痛(be in or suffer a dull steady pain)[I]：Her head/back/tooth/leg～s.她头/背/牙/腿痛。I('m)～(ing) all over.我浑身痛。He was tired and～ing.他累得浑身痛。The blow/strong light made my eyes～. 那一下子打得/强光照得我眼痛。〖同〗hurt;

(2)渴望(want very much;long)[I+prep(for/with)，I+to-inf]：be～ing for home/a cigarette非常想家/抽支烟;～(with desire)to go home/to see sb/to tell sb the good news非常想回家/见某人/告诉某人那好消息;

(3)忧伤，可怜(feel sadness，pity，or the like)[I+prep(for)]：Her heart～d for the orphan.她为那孤儿而心碎。It makes her heart～to see her child suffer.看见自己的孩子受苦令她心痛。The sight of it makes my heart～.这情景使我伤心。

【说明】ache构成复合名词时，如指状况，为不可数名词，如：Sweets give me toothache.(吃糖使我牙痛。)如指一次疼痛的发作，AmE中为可数名词，而BrE中为不可数名词，如：I often get stomach-aches(AmE)/stomach-ache(BrE).(我常常胃痛。)但注意：headache 永远为可数名词，如：I have a headache.(我头痛。)

【辨异】ache与pain都表示“痛”。ache 是持续的局部疼痛;pain是局部波及全身的剧痛。仅ache 可构成表示疼痛的复合名词。