Reduction of area
[化] 断面收缩率
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
🗣️ 情景例句
Who's the valedictorian of this class?
谁是班里优秀的毕业生？
If I were you, I'd choose this product.
如果我是你，我就选择这种产品。
because balloons can be a great danger to aircraft.
因为气球有可能给飞机造成极大的危险。