poltroonery
n.怯懦，胆小
cowardice
n.怯懦，胆小
You should brave your cowardice.
你应该勇敢面对你的怯懦。
pavid
adj.害怕的，胆小的
craven
n.懦夫，胆小鬼，怯懦者 adj.怯懦的，畏缩的，胆小的
acumen
n.敏锐(acuteness)
Bill has a lot of business acumen and earns a high salary.
比尔有很强的商业头脑，薪水很高。
acute
adj.敏锐的(sharp)
Dogs have very acute hearing.
狗的听觉非常灵敏。
adroit
adj.灵巧的(skillful,adept,deft)
The elderly man could not walk, but he was still adroit with his hands.
这位老人不能走路，但他仍然用手熟练地行走。
astute
adj.机敏的;狡猾的(shrewd,canny)
The boss appreciated Mary's astute observations about how to improve the company's image.
老板欣赏玛丽对如何改善公司形象的敏锐观察。
expeditious
adj.敏捷的(prompt);迅速的(speedy)
exquisite
adj.灵敏的; 精美的
an exquisite sense of color
对颜色感觉灵敏
intelligent
adj.聪明的(ingenious,wise)
nimble
adj.思路敏捷的;机敏的(quick)
Nimble thought can jump both sea and land.
敏捷的思维可以跨越海洋和陆地。
shrewd
adj.精明的(clever,smart)
The shrewd business owner made large profits.
精明的商人赚了大钱。
smart
adj.聪明的，敏捷的(clever,intelligent)
tact
n.老练;机智(diplomacy,thoughtfulness)
versatile
adj.通用的，万能的;多才多艺的，多面手的
acuminous
adj.锐利的，敏锐的