Efficaciousness
n. 有效;灵验
🗣️ 情景例句
Now, I appreciate your offer,
因此， 我感激你的提议。
There is no friend so faithful as a good book.
最忠实的朋友莫过于一本好书。
Never mind, I'm feeling better now.
不要紧，我现在感觉好多啦。