ineffective
英 [ɪnɪ'fektɪv] 美 [,ɪnɪ'fɛktɪv]
| 近义词 | negative 、 futile 、 ineffectual 、 fruitless 、 worthless | ||
|---|---|---|---|
- adj. 无效的，失效的；不起作用的
词态变化
副词: ineffectively;名词: ineffectiveness;
中文词源
ineffective 无效的
in-,不，非，effective,有效的。
英文词源
- ineffective (adj.)
- 1650s, from in- (1) "not, opposite of" + effective. Related: Ineffectively; ineffectiveness.
双语例句
- 1. This is an ineffective method of controlling your dog.
- 用这种方法控制你的狗不起作用。
来自柯林斯例句
- 2. If they prove ineffective they should be demoted or asked to retire.
- 如果事实证明他们已无力胜任，应该将他们降级或让他们退休。
来自柯林斯例句
- 3. Economic reform will continue to be painful and ineffective.
- 经济改革仍将举步维艰，毫无成效。
来自柯林斯例句
- 4. An all-female political section would have been operationally ineffective.
- 一个由清一色的女性组成的政治部门工作起来将会毫无效率可言。
来自柯林斯例句
- 5. The new drug was ineffective.
- 新药不起作用。
来自《权威词典》