Effective aperture
[化] 有效孔径
🧩 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
with my own two hands, practically.
差不多是独自完成的。
It's no trouble at all. I'll carry this suitcase for you.
一点也不麻烦，我来替你提这只箱子。
Mrs.Bussman commented on the workman's close resemblance to her husband and even suggested that he might be his brother.
巴斯曼夫人说那工人与她丈夫相貌很像，甚至猜测他可能就是她丈夫的兄弟。