Effective concentration
[化] 有效浓度
🧩 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
🗣️ 情景例句
What's your opinion about this?
你的观点是什么？
Hatred is blind as well as love.
爱情与仇恨同样是盲目的。
They must keep their hands behind their backs.
他们得一直将手放在背后。