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
Smoking makes your teeth yellow and ugly.
吸烟让你的牙齿变得又黄又丑。
Martha's bread tastes as if she burns it.
玛莎做的面包有烤焦的味道。
We enjoy staring at them, entranced as they go about their business, unaware (we hope) of our presence.
我们喜欢入迷地看它们做事，它们不知道（但愿如此）我们就在它们身边。