Effective area
[计] 有效面积
🧩 词语组成解析
effective
[ɪ'fɛktɪv]
adj. 有效的;起作用的;实际的，实在的;给人深刻印象;
n. [军]现役兵额，有生力量，精兵;
ef出+fect做，制作 +ive形容词后缀 →做出来的 → 有效的
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
🗣️ 情景例句
Robbie just went to the store.
Robbie刚去商店。
It is said that a new policy is being put into practice in your foreign trade.
据说你们正在实施一种新的对外贸易政策。
What day is today?
今天星期几？