ineffective

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》