lack, need, want, require

lack, want, absence, shortage, scarcity

名詞 lack:

1. the state of needing something that is absent or unavailable
   同義詞：deficiency, want

動詞 lack:

1. be without
   同義詞：miss

1. The accused got off/escaped scot-free because of lack of evidence.
   由於證據(jù)不足，被告未受懲罰。
2. Fixed wages and lack of promotion act as a disincentive to employees.
   工資固定又無晉升機會遏制了雇員的積極性。
3. Her decision seems to show a lack of political judgement.
   她的決定似乎顯示出缺乏政治判斷力。
4. Lack of sun retards plant growth.
   光照不足則植物生長緩慢。
5. Lack of evidence resulted in their acquittal.
   因證據(jù)不足而宣判他們無罪。
6. The plant died for lack of water.
   植物因缺水而枯死了。
7. He is good at his job but he seems to lack confidence.
   他工作不錯，但似乎缺乏信心。

lack

n.（名詞）
A deficiency or an absence:
缺乏或沒有：
例句：
a lack of money.
缺乏金錢

Something needed or wanted.
欠缺的事物：缺乏或?qū)で蟮哪澄?/br>v.（動詞）
lacked,lack.ing,lacks
v.tr.（及物動詞）
To be entirely without or have very little of.
缺乏：根本就沒有或僅有一點
To be in need of.
需要
v.intr.（不及物動詞）
To be wanting or deficient:
缺乏：處于匱乏或不足狀態(tài)：
例句：
You will not be lacking in support from me.
你將得到我的幫助

To be in need of something:
需要：需要某物：
例句：
I lacked for nothing.
我不需要任何東西

來源：
Middle English
中古英語
perhaps from Middle Dutch lac [deficiency, fault]
可能源自 中古荷蘭語 lac [缺乏，缺陷]

<參考詞匯><同義詞>lack,want,needThese verbs mean to be without something,especially something that is necessary or desirable.
這些動詞的意思是沒有某物，尤指該物是必須的或是合乎需要的。
Lack emphasizes the absence of the thing in question or the inadequacy of its supply:
Lack 強調(diào)的必須品的缺乏或其供應的不足：
例句：
She lacks the money to buy new shoes.
她沒錢買新鞋。

例句：
The plant died because it lacked moisture.
這株植物因為缺乏水分而死。

例句：
What he lacks in courage he compensates for in bravado.
他用虛張聲勢來彌補自己勇氣的匱乏。

Want andneed stress the urgent necessity for filling a void or remedying an inadequacy:
Want 和need 強調(diào)的是填補空白或彌補不足的迫切性：
例句：
.Her pens were uniformly bad and wanted fixing. (Bret Harte).
.她的鋼筆都壞了，需要修理. （布萊特·哈特）。

例句：
I need help.
我需要幫助。

例句：
The garden needs care.
花園需要人照管。

例句：
.Only when he has ceased to need things can a man truly be his own master and so really exist. (Anwar el-Sadat).
.只有當一個人慚慚地對外物無所求時，他才可能成為他自己真正的主人并因此而真實地存在. （安瓦爾·埃爾·薩達特）

As an intransitive verbin the sense .to be wanting or deficient,.lack is used chiefly in the present participle with in:
作為一個不及物動詞，用于.缺乏或缺少.之意的lack 主要和 in一起用于現(xiàn)在分詞中：
例句：
You will not be lacking in support from me.
你會得到我的幫助。

In the sense .to be in need of something.it is often used withfor:
當意思是.需要某物.時，它經(jīng)常與for連用：
例句：
.In the terrible, beautiful age of my prime,/I lacked for sweet linen but never for time. (E.B. White).
.在我可怕而又美麗的壯年歲月中，／我需要的是亞麻布而從來不是時間. （E．B．懷特）