Effectiveness variance
[经] 有效性的差异
🧩 词语组成解析
effectiveness
[i'fektivnis]
n. 有效，有力;有效性;效益;效用;
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
I'd love to, but I have to be up early tomorrow.
我非常感谢，可是明天我得早起。
There was much news in the morning paper today.
今天的晨报上有许多新闻。
our confidence in the curative properties of the bottle of medicine remains the same as theirs.
我们对瓶装药品疗效的信心仍与祖辈一样坚定。