effectiveness

英 [?'fekt?vn?s] 美[?'f?kt?vn?s]
  • n. 效力

TOEFL中高頻詞

詞態(tài)變化


形容詞:?effective;

助記提示


1. ef- "out" + fect-. 在這里取 out 的引申義:完成、結(jié)束(finish, end)之意。
2. meaning: 事情做完了,事情做結(jié)束了. => work out, accomplish.
3. => 引申為:事情做完、做結(jié)束后的結(jié)果、效果、作用、影響等。
4. 做動(dòng)詞就表示:生效、完成、實(shí)現(xiàn)、達(dá)到、造成等含義。
5. effect + -ive + -ness.

英文詞源


effectiveness (n.)
c. 1600, from effective + -ness.

雙語(yǔ)例句


1. Our research attempts to evaluate the effectiveness of the different drugs.
我們的研究試圖對(duì)不同藥物的療效進(jìn)行評(píng)估。

來(lái)自《權(quán)威詞典》

2. The drugs work well at first but gradually lose their effectiveness.
這些藥的效果起初非常好,但后來(lái)逐漸失效.

來(lái)自《簡(jiǎn)明英漢詞典》

3. To assert this is to denigrate the effectiveness of the police.
堅(jiān)持這一點(diǎn)就是貶低警方的辦事能力.

來(lái)自《簡(jiǎn)明英漢詞典》

4. Bad diction marred the effectiveness of his speech.
措詞不當(dāng)影響了他演說(shuō)的效果.

來(lái)自《簡(jiǎn)明英漢詞典》

5. Bad diction marred the effectiveness of her speech.
文辭不當(dāng)削弱了她演講的渲染力.

來(lái)自《現(xiàn)代漢英綜合大詞典》