Developed blade area
[化] 展开叶片面积
🧩 词语组成解析
a. 发达的（国家或地区）；成熟的
blade
[bled]
n. 刀片，剑;（壳、草等的）叶片;桨叶;浮华少年;
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
🗣️ 情景例句
Stocks, shares and bonds are good alternatives for personal investment.
储蓄、股票和债券是个人投资很好的选择。
What month is this?
现在是几月份？
After having been wounded towards the end of the war, he had been sent to hospital and was separated from his unit.
战争即将结束时，他负伤被送进医院，并与部队失去联系。