Effective sectional area
[机] 有效剖面积
🧩 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
sectional
['sɛkʃənl]
adj. 拼合而成的;局部的;部分（地区）的;断面的;
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
🗣️ 情景例句
You will waste a lot of money trying to keep up with the newest fashions every year.
为了跟上每年最新的时装潮流，你得花大把的钱。
What is the highest mountain in this country?
这个国家最高的山是什么？
I know someone who always cuts sketches out from newspapers of model clothes that she would like to buy if she had the money.
我认识一个人，她总喜欢从报纸上剪下流行服装的图样，等以后有钱时去买服装。