ineffective
英[?n?'fekt?v]
美[,?n?'f?kt?v]
- adj. 無效的，失效的；不起作用的
詞態(tài)變化
副詞:?ineffectively;名詞:?ineffectiveness;
中文詞源
ineffective 無效的
in-,不，非，effective,有效的。
英文詞源
- ineffective (adj.)
- 1650s, from in- (1) "not, opposite of" + effective. Related: Ineffectively; ineffectiveness.
雙語例句
- 1. This is an ineffective method of controlling your dog.
- 用這種方法控制你的狗不起作用。
來自柯林斯例句
- 2. If they prove ineffective they should be demoted or asked to retire.
- 如果事實證明他們已無力勝任，應該將他們降級或讓他們退休。
來自柯林斯例句
- 3. Economic reform will continue to be painful and ineffective.
- 經濟改革仍將舉步維艱，毫無成效。
來自柯林斯例句
- 4. An all-female political section would have been operationally ineffective.
- 一個由清一色的女性組成的政治部門工作起來將會毫無效率可言。
來自柯林斯例句
- 5. The new drug was ineffective.
- 新藥不起作用。
來自《權威詞典》