基础释义
柯林斯词典释义

福克斯词典 \ 英汉词典 \

penumbras是什么意思？

penumbras

n. 黑影周围的半阴影( penumbra的名词复数 )，半影，边缘，外围；

柯林斯高阶英汉双解学习词典释义

N-COUNT

半影；半阴影

A penumbra is an area of light shadow.

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