动 lose，miss，let slip，fail to achieve one's end；名 （错误； 过失） mistake，defect，mishap ；

[例句] 他因驾驶的单翼飞机失速坠地而丧生。 He was killed when his monoplane stalled and dived into the ground.

[例句] 他4次射门得分，却罚失了1粒点球。 He scored four of the goals but missed a penalty.

lose efficacy，lose effectiveness，be no longer in force，become invalid，abate ；

[例句] 要记住的是，一旦结婚，原遗嘱自动失效。 It is worth remembering that previous wills are nullified automatically upon marriage.

[例句] 现在签订的合同可能在将来的某一天就会失效。 A contract signed now might be invalidated at some future date.

lose，loss，wastage，damnify，expense ；

[例句] 期货价格在早盘深幅下跌后出现反弹，收盘时未见严重损失。 Futures prices recovered from sharp early declines to end with moderate losses.

[例句] 说损失会很严重想必猜得不错。 It's a fair guess to say that the damage will be extensive.

fault，slip，[律] unpremeditated crime，offense，blame ；

[例句] 她因受到挑衅而过失杀人的有罪答辩被驳回。 Her plea of guilty to manslaughter through provocation was rejected.

[例句] 那些司机必然会受到过失杀人的指控。 Those drivers should face an automatic charge of manslaughter.

be defeated，lose，fail，come to nothing，a case of crabs ；

[例句] 比失败更令人恐惧的是懊悔。 Failure is never quite so frightening as regret do.

[例句] 努力过，失败过，没关系，屡战屡败，屡败屡战，每一次失败都比上一次更好。 Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.

[无] distortion，anamorphose，lack fidelity，not be true to the original ；

[例句] 声音信号可以通过电缆传送而不失真。 Audio signals can be transmitted along cables without distortion.

[例句] 化学药水不合比例可引致摄影图像的严重失真. The wrong chemical balance can cause severe distortion of the photographic image.

lose，forfeit，be deprived of，be bankrupt in，beravement ；

[例句] 他呼吁自己的同胞不要丧失信心。 He appealed to his countrymen not to lose heart.

[例句] 撕裂的肌肉会收缩，丧失原来的力量、结构和紧实度。 Torn muscles retract, and lose strength, structure, and tightness.

lose，loss ；

[例句] 若遗失机票，请拨打STA的免费求助热线。 Should you lose your ticket call collect on STA's helpline.

[例句] 该队正在试图找到遗失的细节。 The team is trying to ferret out missing details.

lose one's job，be out of work，be unemployed，idleness，in dry dock ；

[例句] 1986年，有300多万人领取失业救济金。 In 1986 more than three million were receiving unemployment benefit.

[例句] 两年后，他一贫如洗，靠失业救济金生活。 Two years later he is flat broke and on the dole.

disappear，vanish，dissolve，die away，clear away ；

[例句] 但女子却拿了张千元大钞给女服务生,然后就消失无踪. But the woman handed the waitress a $ 1,000 bill and then disappeared.

lose，kiss good-bye ；

[例句] 当生活很艰难，你想要放弃的时候，请记住，生活充满了起起落落，如果没有低谷，那站在高处也失去了意义。 When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.

[例句] 机会已经失去。他苦苦思索别的方案。 The opportunity had gone. His mind scrabbled for alternatives.

lose balance，dislocate，lack of proper care，imbalance，maladjustment ；

[例句] 这种病情叫做季节性情感失调症，或简称SAD。 This condition is called seasonal affective disorder, or SAD for short.

[例句] 糖尿病是由体內胰岛素分泌失调引起的. Diabetes is caused by a fault in the insulin production of the body.

be disappointed，despair，lose hope，beyond (all) hope；

[例句] 渐渐地，我对大学的整个体制感到相当失望。 I gradually got rather disillusioned with the whole setup of the university.

[例句] 即便有点儿失望，也肯定是暂时的。 If there was any disappointment it was probably temporary.

break a promise，fail to keep an appointment，stand sb. up，break an appointment ；

[例句] 你可不能失约. You mustn't break the appointment.

[例句] 他接受了邀请, 但后来被迫失约. He accepted the invitation, but was later forced to disengage himself.

lose，drop ；

[例句] 贵重的展品，呃哼，丢失的话，会众人皆知。 It is not unknown for valuable display items to go, ahem, missing.

[例句] 农民正在逐渐丢失经营土地的本领。 Farmers are increasingly losing touch with their instinct for managing the land.

[航空] stall ；

out of control，runaway，incontrollable，lose control of，run away；

[例句] 那辆失控的车猛冲到一条长椅上，撞伤了一对老夫妇。 The runaway car careered into a bench, hitting an elderly couple.

[例句] 他的脾气很坏，有时会完全失控。 He had a terrible temper, and sometimes he would completely lose control.

break one's promise，go back on one's word，break faith，break one's word ；

[例句] 对不起,我失信了. I am sorry that I broke my promise.

[例句] 他失信了. He departed from his word.

inattentive，absent-minded，out of sorts，in low spirits，deliquium ；

[例句] 他失神地望着窗外。 He looked vacantly out of the window.

[例句] 她双唇微张，失神地望着前方。 She was staring into space, her mouth slack.

lose sleep，wakefulness，agrypnia，ahypnosis，insomnia ；

[例句] 深夜喝浓咖啡或浓茶可能会导致失眠。 Strong coffee or tea late at night may cause sleeplessness.

[例句] 失眠有时是某些药物产生的副作用。 Sleeplessness is sometimes the side effect of certain medications.