Inefficacious
a. 无效果的\\n[医] 无效的, 无效力的
✅ 同义词
🔴 反义词
🗣️ 情景例句
That will do.
那可以。
It only takes a few minutes.
只要几分钟而已。
We need three times as much as we originally ordered.
原来的三倍。