请输入您要查询的英文单词：
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
pull off
pull on
pull out
pullout
pull out all the stops
pull over
pullover
pull pints
pull rank (on someone)
pull round
pull someone’s leg
pull something to pieces/apart
pull something to pieces/apart/to bits
pull strings
pull the other one (it’s got bells on)
pull the plug (on something)
pull the rug (out) from under someone
pull the strings
pull the wool over someone’s eyes
force the issue
force the pace
force through
force up
force/push/ram/thrust something down someone’s throat
forcible
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：2025/12/5 4:04:55