Sectional area
[化] 截面积
🧩 词语组成解析
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
He's a little quiet.
他有点沉静。
I asked him to do it for me, but he wouldn't.
我请他帮我做，但是他不肯。
How do you do ? Are you having a nice time in Beijing?
你好！你在北京玩得愉快吗？