音标:['ju:sfjlnis] ;
n. 有用, 有益
[经] 有用, 有用性
n the quality of being of practical use
词型变化:名词复数形式 : usefulnesses
词性分布:
名词100%

usefulness的用法和样例:

例句

用作名词(n.)
  1. It is of the greatest usefulness.它是极有用的。
  2. This toolhas even more usefulness than that.这个工具比那个更有用。
  3. The duality of use value refers to its usefulness and rarity.使用价值的两重性指的是有用性和稀少性。

词汇搭配

  • usefulness index实用性指数
  • decline in economic usefulness经济效用减低...
【近义词】
【反义词】

It was known by all that he was a good scholar, and by all that he was respected. 所有人都知道他是一名好学生,都敬佩他。 His father and mother, brothers and sisters, came on the commencement day to hear him speak. 他父母和兄弟姐

发表于:2019-01-17 / 阅读(196) / 评论(0) 分类 美国语文第四册

At the opposite extreme 在对待老人的另一个极端 in treatment of the elderly, the happy extreme, 这个快乐的极端, are the New Guinea farming societies 是在新几内亚的农耕社会 where I've been doing my fieldwork for the past

发表于:2019-02-14 / 阅读(236) / 评论(0) 分类 TED演讲科学篇
学英语单词
a small portion of the germinating
air powers
alternative
alwayes
ancyloid
anerobic corrosion
anfile b.
banana equivalent dose
bedcords
bedrolls
boitano
bun loaf
bursae trochanterica musculus glutaei maximi
Buttala
buy rating
byte-serial transmission
Calonne-Ricouart
cathode modulation
changing plate
clarices
Colgout
come under
computer-to-press
configuration control block
crd housing-to-stub tube weld
cresyl alcohol
cylindrical geometry
danae
decree arbitral
Dexacillina
diamond target
digger's delight
dinoderus minutus
drag sheel
dry heating curing
earth mover
earworm
enchasers
Erichsen's disease
ever-blooming
fancy dress parties
flash guard
Folliculi lymphatici solitarii
geekettes
goal consistency model
grabrail
gullick
half bridge circuit
halimodendron argenteums
hetero-immune substance
interoceptions
juveniliuo
Kankakee R.
land laid
legal investment list
lightning arrester characteristics
line error processing
line fill
lorisid
louvered air outlet
lowest low water
lubbe
mathematical discovery
mutualized
nastya
Nomeus
nonbreeder
odontogenic organs
partier
pedomorphy
peneids
Pieris rapae
plasmotropic(waddington 1962)
plusage
poetique
power distributing cabinet
pressure-field
qbs
quench-hardening
registration of the felling produce
retinervus luffae fructus
rising actions
Romanianize
russet scab
Saussurea alata
selenium stainless steel
She won't eat you.
solar equation
St-Léon
standard ton
standard train
steelmaking process
sucralox
tape corrections
tetranychid mite
throw sb back on their own resources
tombarolo
topwaters
tracking indicator
well-dressing
wild swimming
Zoolobelin