viability，élan vital，vitality ；

[例句] 降低生活力或 “ 近亲繁殖的衰退 ” 并不是近亲繁殖必然的后果. Reduced vigor or " inbreeding depression " is not an invariable consequence of inbreeding.

[例句] 这些染色体畸变都是稳定的, 不影响细胞生活力的. These chromosome aberrations are all stable, compatible with cell viability.

appeal，attraction，[机] attractive force，charm，affinity ；

[例句] 对于去托斯卡纳东南部探险的人们来说，这两家酒店是很有吸引力的驻扎地。 The two hotel-restaurants are attractive bases from which to explore southeast Tuscany.

[例句] 无人能比的彼得·亨宁格尔自然是主要的票房吸引力所在。 The major box office attraction was, of course, the inimitable Peter Hunningale.

financial resources [capacity]，financial and material capabilities，cap，fin，financial ；

[例句] 他们决定放弃这次出游是因为财力有限。 Their decision to abandon the trip was made because of financial constraints.

[例句] 这家公司财力雄厚。 The company has enormous financial firepower.

mental and physical efforts ；

[例句] 中心力是由球对称的势能函数而来的力. A central force is one derived from a potential - energy function that is spherically symmetric.

[例句] 有心力是一种径向力,它的大小只取于离原点的距离. A central force is a radial force which depends only on the distance from the origin.

energy，vigour，vim，force，get-up ；

[例句] 她54岁了，精力和气色都非常好。 At 54 years old her energy and looks are magnificent.

[例句] 我们必须首先集中精力治疗毒瘾。 We must concentrate our energies on treating addiction first.

force，power，influence，interest，weight ；

[例句] 极右势力在20世纪80年代有所抬头。 The extreme right reared its ugly head in the 1980s.

[例句] 纳粹主义势力当时正在彻底改变德国。 The forces of National Socialism were transforming Germany root and branch.

force，devote oneself to，work for，make efforts in，dedicate ；

[例句] 他一直致力于在教育系统内为美籍拉美人和黑人争取权益。 He was a champion for Latinos and blacks within the educational system.

[例句] 他一心一意致力于早日让被压迫者获得自由。 He was single-mindedly devoted to the hastening of freedom for the oppressed.

need or use great effort，be strenuous，ado，hard sledding，strenuosity ；

[例句] 在森林中徒步旅行时，即便带的是便携式摄像机也非常费力。 Even carrying the camcorder while hiking in the forest was an effort.

[例句] 查利费力地将背包背到楼上自己的公寓里。 Charlie humped his rucksack up the stairs to his flat.

moment，moment of force ；

[例句] 涡轮力矩相当高的 馈 气套简应予退回,或许还得重新加工. Air - feeding sleeves with considerably higher turbine torques are rejected and probably reworked.

[例句] 静态平衡意味着力和力矩都处于平衡. Statical equilibrium means that both forces and moments are in balance.

（力气） physical strength，ability，power，force，potence ；

[例句] 别低估了慷慨的力量。 Generosity is its own form of power.

[例句] 当你从内心深处找到一种可以忍受一切痛苦的坚强力量时，你的成长历程就会出现飞跃。 The turning point in the process of growing up is when you discover the core of strength within you that survives all hurt.

lack strength，feel weak，unable，incapable，atony ；

[例句] 冬季会让人感觉疲乏无力。 Winter weather can leave you feeling fatigued and tired.

[例句] 由于无力偿还1.14亿英镑的贷款担保，他被宣布破产。 He was declared bankrupt after failing to pay a £114m loan guarantee.

daring and resolution，boldness，courage，vigour，force ；

[例句] 约翰的魄力和热情最令人难忘。 John will be best remembered for his drive and enthusiasm.

[例句] 她是个很有魄力的知识分子，不惧怕说出自己的想法。 She was a forceful intellectual unafraid to speak her mind.

vitality，bionergy，entelechy，breath，libido ；

[例句] 小型企业是经济的生命力所在。 Small businesses are the lifeblood of the economy.

[例句] 他看上去病得很厉害—他的生命力似乎枯竭了。 He looked very ill—his life force seemed to have drained away.

willpower，guts，will，stamina，backbone ；

[例句] 我知道我有毅力做这事儿。 I know I've got the willpower to do it.

[例句] 他是个有决心有毅力的人。 He is a very determined and strong-willed person.

magic power，magic，charm，alchemy，bewitchment；

[例句] 这位斗士相信自己仍然可以恢复从前的一些魔力。 The fighter believes he can still regain some of his old magic.

[例句] 爱情的魔力也许根本无法解释。 There can be a magic about love that defies all explanation.

force，power，formidable force，might ；

[例句] 战术核武器的威力范围较小。 Tactical nuclear weapons have shorter ranges.

[例句] 狂风的威力把他猛撞在山洞石壁上. The force of the blast dashed him against the wall of the cave.

（极力谋求） try hard to，strive to，strive ；

[例句] 他们不停地提出其他政治问题，力图把水搅浑。 They keep on muddying the waters by raising other political issues.

[例句] 研究院主任尼尔·豪沃思力图平息事态。 Neil Howorth, director of the academy, tried to calm things down.

energetically，vigorously ；

[例句] 经常大力强调物质成就。 There is often a strong accent on material success.

[例句] 尽管是10年前出版的，这本书仍值得大力推荐。 Though ten years old, this book is highly recommended.

work hard for，do all one can to，argue strongly，contend vigorously，fend ；

[例句] 他力争在政界取得辉煌的成绩. He strove for the glittering prizes of politics.

[例句] 我们应力争取得最好的成绩. We should shoot for the best results.

unite efforts，join in a common effort，concert，concurrence，conspire ；

[例句] 公司上下都协力相助。 The entire company pitched in to help.

[例句] 在这里,你可以看到两个劳动者, 他们俩协力割下了三车金黄色的通心面秸. Here you can see two workers who, between them, have just finished cutting three cart - loads of golden brown macaroni stalks.