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
She works hard.
她工作起来拼命
I heard you.
我听到了啦。
You must have been driving at seventy miles an hour.