install [ɪn'stɔl] 词频3 词根: in

vt. 安装;安顿，安置;任命;使…正式就职;

💡 in进+stall放→放进去→安装

"The unit is comparatively easy to install and cheap to operate."

近义：assemble, instal, implant, inaugurate, infuse, instill 反义：demount, disassemble, dismantle, invalidate, abrogate, negate

security [sə'kjʊrəti] 词频2 词根: se

n. 安全;保证，担保;保护，防护;有价证券; adj. 安全的，保安的，保密的;

💡 se分开+cur关心+ity抽象名词，性质状态 → 安全；证券

"In a world that had suddenly become alien and dangerous, he was her only security."

近义：prevention, safety, care, protection, safeguard, safeness

system ['sɪstəm] 词频2 词根: st-

n. 体系，系统;制度;身体;方法;

💡 sy(syn-=together)+ste(to stand)→系统；体系；秩序；制度；方法

"The system has the ability to run more than one program at the same time."

近义：approach, method, methodology, procedure, process, technique

going ['gəuiŋ] 词频1

n. 出行，离去;出发;行为;工作情况; adj. 活着的，现在的;进行中的，营业中的;现行的;流行中的; v. 进行(go的现在分词);

"I would strongly advise against going out on your own."

近义：leaving, parting, withdrawment, departure, egress, exit 反义：appearance, appearing, imminence, approach, approaching, assistance

home [hom] 词频1

n. 家;家庭;家庭生活;终点; adj. 家庭的;家用的;本地的;本部的; adv. 在家;在家乡;深深地;深入地; vi. 回家;有家;朝向;自动导航; vt. 把…送回家;送…回家;给…提供住处;使有安身之处;

"a range of furnishings and accessories for the home"

近义：house, lodging, quarter, residence, seat, gaff