because [bɪ'kɔz] 词频1 词根: be

conj. 因为;

💡 cause, cuse 表原因,目的;司法程序,诉讼

"He was arrested because of his political affiliation."

近义：since, whereas, for, forasmuchas

nervous ['nɝvəs] 词频2 词根: neuro

adj. 焦虑的;紧张不安的;神经质的;

💡 nerv神经 + ous ...的 → a.紧张的，神经的；易激动的

"Certain chemicals can induce undesirable changes in the nervous system."

近义：apprehensive, jittery, jumpy, scary, shy, skittish 反义：mild, pacific, peaceable, peaceful, placid, quiet

smith [[smiθ]] 词频3

n. 铁匠, 金属品工匠\\n[机] 锻造工, 上手

近义：smelter, blacksmith, caster, forger, foundryman

jack [[dʒæk]] 词频1

n. 插座, 千斤顶, 男人\\nvt. 抬起, 提醒, 扛举, 增加, 提高, 放弃\\na. 雄的\\n[计] 插座

近义：heft, hoist, lift, elevate, jackass, buck

look [lʊk] 词频1

vt.& vi. 看，瞧; vi. 注意;面向;寻找;看起来好像; n. 看;（尤指吸引人的）相貌;眼神;样子; int. （插话或唤起注意）喂，听我说;

💡 l(棍)+oo(双眼)+k(开):挣开双眼搜索棍- 看

"That uniform makes the guards look absurd."

近义：appear, seem, see, appearance, image, area