Effective margin
[计] 有效余量
🧩 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
margin
['mɑrdʒən]
n. 边缘，范围;极限;利润，盈余;（版心外）的空白;
vt. 留边;成为…的边;加边于，围绕;为…加旁注;
🗣️ 情景例句
so you can drive her home after the party.
在派对结束后送她回家。
He is in difficulty in his business.
他在事业上遇到困难了。
ammunition and 400 people went sliding and crashing down to the port side of the steeply listing ship.
弹药和400个人轰地一声滑向陡斜的左舷时，