ineffective
adj
not producing the required effect(s) 不起作用的; 无效果的; 效果不佳的
use ineffective methods 使用无效的方法
She is totally ineffective as a teacher, ie She cannot teach satisfactorily. 她当老师全然不称职.
🗣️ 情景例句
but I think we should face the truth.
但我认为我们应面对现实。
It's a sunny day.
今天是个艳阳天。
Duck, and like them the pigeons, are endowed with such-like muscles, that are a good part of the weight of the bird,