effectiveness
英 [?'fekt?vn?s]
美[?'f?kt?vn?s]
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,但后來逐漸失效.
來自《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)影響了他演說的效果.
來自《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.
來自《現(xiàn)代漢英綜合大詞典》