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
I'm terribly sorry about that.
为此我非常抱歉。
I can't stand it.
我受不了。
After the funeral, Joe and Bob revealed a secret which they had kept for over fifty years.
葬礼之后，乔和鲍勃透露了他们保守了长达50多年的秘密。