Optical opacity
[医]不透光性
🧩 词语组成解析
opacity
[[əu'pæsiti]]
n. 不透明, 电波不透过, 不透明体\\n[医] 浑浊, 不透明, 不透光, 不透明区, 浊斑
🗣️ 情景例句
I do, too.
我也一样。
Do you often study history on Saturday?
你常常在星期六学历史吗？
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了，比人们想像的要早20，000年。