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单词
penumbra
释义
penumbra
noun
countable
UK
/
pəˈnʌmbrə
/
Word Forms
singular
penumbra
plural
penumbras
DEFINITIONS
1
1
an area covered by the outer part of a shadow, so that it is not completely dark
Synonyms and related words
The outer parts of objects or spaces
apex
back
back end
penumbra
noun
countable
physics
US
/
pəˈnʌmbrə
/
Word Forms
singular
penumbra
plural
penumbras
DEFINITIONS
1
1
an area covered by the outer part of a shadow, so that it is not completely dark
Synonyms and related words
The outer parts of objects or spaces
apex
back
back end
随便看
have everything
have eyes in the back of your head
have feet of clay
have first call on
have/get something down to a fine art
have (good) cause to do something
have got
have (got) it coming
have (got) it made (in the shade)
have (got) someone bang to rights
have (got) someone (right/just/exactly) where you want them
have (got) someone (right/just/exactly) where you want them
have (got) someone’s number
have (got) something all to yourself
have (got) something ready/done/finished
have green fingers
have had a few (too many)
have had it
have had it up to here
have had your chips
have had your/its day
have/have got against
have heard it (all) before
have high/great hopes for someone
have in
英语词典包含67175条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。
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更新时间：2025/11/8 23:24:57