penumbra 详细解释

penumbra

[pi'nʌmbrə]

n.半阴影, 边缘部分

词形变化

形容词: penumbral | 名词复数: penumbrae |

词义辨析

同义参见:

shade  

英英释义

名词 penumbra:

a fringe region of partial shadow around an umbra

补充

penumbrapenumbra英:[piˈnʌmbrə] 美:[pɪˈnʌmbrə]n.1.黑影周围的半阴影2.半影

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