音标:[pi'nʌmbrә] ;
n. 半影, 明暗交界部分, 边缘部分, 周围的气氛
[化] 半影
n. a fringe region of partial shadow around an umbra
词型变化:名词复数形式 : penumbras
考试类型:[GRE]
词性分布:
名词100%

penumbra的用法和样例:

例句

用作名词(n.)
  1. Vaapad is a path that leads through the penumbra of the dark side.瓦帕德就是一条游走于明暗面之间的道路。

词汇搭配

  • penumbra cone半影锥
  • penumbra zone半影区

经典引文

  • Round the lightswitch, a dark penumbra caused by the many hands..rubbed against the wall.

    出自:E. Figes
  • The vast penumbra of semi-dependent artisans and outworkers.

    出自:E. J. Hobsbawm
  • Almost all chronic illness is surrounded by a penumbra of gloomy imaginings.

    出自:P. Medawar
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学英语单词
a rather larger terminal raceme
adfected
allylglycine
alveole
amber alerts
analysis method
Anamur
andthe
anoviar
apple cores
auntly
beam of balance
Belsen
boiler automatic control
British Rayon Research Association
bubbling frequency
buccal teeth
cabar
Cannon Town
characteristic of a logarithm
Chloriodquinum
composition book
corallium
country-level
crown of the head
cunting
cushion breadth
dead reckoning tracer
deaspirate
dimethylol ethylene urea (dmeu)
dip into the till
directional hearing
divergent strains
drapeable
earth conductor cable
Ehrlich 5
ekaelement
emergency oil relieve valve
episymploce sundaica
etch out method
execution of the contract of carriage
flame tokays
geomelophagia
globe sight
Guruhood
habitual drunkard act
Hammerton
haslem
health hazard
high-resolution amplifier
India paspalum
institutionist
interfacial science
ker-thump
lachrymal bone
lophocateres pusillus klug
make your peace with
maritime air fog
metallated
multi cylinder engine
multicircuit switch
multicountry
multiple indirect file
Murrieta
non thematic
offer and counter offer
Olintepeque
organic chemist
para-sulfamoylbenzoic acid
pith ray fleck
Plataea
plumbless
porous dehiscence
powerproduction
prebasilar
program chart
prosodic system
purkinje's images
Quechuan
raundom
rivet structure
s'y
sample passer
Seleucias
sense impressions
simajine
Streptococcus coryzae contagiosae
superdelicious
supervisory programs
team work key
the turn of the century
tracheal commissures
transactivations
transparent mode transmission
under course
usurpously
War Crimes Commission
x ray interference
xeromorphic mesophyte
young's
zoophilism