记住 Efficacious：词根拆解 + 名言例句助记法

✅ 同义词

operative active effective effectual efficient

incapable ineffective ineffectual inefficacious inept inexpert inoperative noneffective nugatory shiftless

-fac-表示“制作” 常见变体有-fic-、-fig-、-fect-、-feat-

efficacious adj (fml 文) (not of people) producing the desired result; effective （不用以指人）有效的 an efficacious treatment, medicine, etc 有效的治疗、药品等.

facile adj. 轻率作出的;不动脑筋的;轻易可得的;

difficult adj. 困难的;难做的;难解的;不易相处的;

efficiency n. 效率，效能;实力，能力;[物]性能;功效;

deficit n. 不足额;赤字;亏空;亏损;

magnificence n. 华丽，富丽堂皇;

defect n. 瑕疵，毛病;欠缺，缺点; vi. 叛逃;背叛;

I've let my health deteriorate.

我的健康恶化了。

Friends are lost by calling often and calling seldom.

交往过密过疏，都会失去朋友。

The seeds must be carefully chosen; they must fall on good ground;

那就必然从精选良种做起，然后将其植入肥沃的土地，

更多情景英语 ›

edcouch

effective address register

elongates

enamel reactor

enterogenous cyanosis

Ephes

eseroline

evergreen millet