没有，缺乏；不足，不够

jack of───杰克

slack off───偷懒；懈怠

back off───后退；软化；减轻；卸下

black op───黑色操作

hack off───砍下；砍断；使厌烦或失望;激怒（非正式）

jack off───手淫

pack off───送走；把…打发走；匆匆离开；寄出

There is no lack of opportunities for further study.───学习的机会有的是.

Through his lack of attention to the game he had put his white stone into a " tiger's mouth " formed by three black stones.───由于他漫不经心地下棋,他的白子掷到黑子的 虎口 里去了.

You show promise as a musician but your lack of practice is keeping you back.───你有希望成为音乐家,但是缺乏实践会影响你的发展.

Her eyes ached from lack of sleep.───她的眼睛因睡眠不足而隐隐作痛。

She wrinkled her nose, piqued by his total lack of enthusiasm.───她皱皱鼻子，为他毫无热情而感到不快。

Many small plants in that country closed down for lack of fuel.───由于燃料不足,那个国家很多小厂都关闭了.

Lack of refrigeration turned the milk.───牛奶没有冷藏,变酸了.

Lack of exercise can lead to feelings of depression and exhaustion.───缺乏锻炼会导致抑郁和疲劳。

He felt people were contemptuous of his lack of sophistication.───他觉得人们看不起他不懂人情世故.

Their failure to reply to our letter seems to imply a lack of interest.───他们没有回我们的信似乎暗示他们缺乏兴趣.

She suffers from a lack of confidence.───她深受缺乏自信心之苦。

They wasted away for lack of food.───由于食物的缺乏,他们越来越虚弱了.

Lack of security of tenure was a reason for many families becoming homeless.───居住权得不到保证是许多家庭居无定所的一个原因。

He showed a marked lack of interest.───他表现出明显的兴趣不足.

A lack of narrative drive leaves the reader with piecemeal vignettes.───述缺乏吸引力,读者读到的只是一些支离破碎的片段.

The old man became bored for lack of occupation.───这位老人因无所事事而感到无聊.

I was disappointed to see the lack of coverage afforded to this event.───令我失望的是这一事件并未得到什么报道。

They behave with a total lack of inhibition.───他们表现得毫无顾忌。

The plan was criticized for its lack of rationale.───该计划因缺乏根据而遭到批评.

Lack of money led to the abandonment of this plan.───由于缺乏经费,最后只好放弃这项计划.

They were exhausted from lack of sleep.───他们因睡眠不足而疲惫不堪了。

A lack of oxygen may inhibit brain development in the unborn child.───缺氧可能阻碍胎儿的大脑发育。

Lack of proper nourishment reduces their power to resist disease.───营养不良降低了他们抵抗疾病的能力.

Her brain was befogged by lack of sleep.───她因缺乏睡眠而头脑昏沉。

Peter was severely lectured for lack of consideration to his mother.───彼得因毫不体贴母亲而受到严厉训斥.

His difficulties issue from his lack of knowledge.───他的困难是由于知识贫乏造成的.

His lack of English handicaps him.───他的英语不好对他是一件不利的事.

The campaign was widely criticised for making tactical mistakes and for a lack of coherence.───竞选运动由于犯了战术性错误和缺乏连贯性而广受批评。

The lack of enthusiasm for unification among most West Germans fills him with disappointment.───大多数西德人都没有渴望统一的热情，这令他无比失望。

The shop has shut down because of lack of trade.───那商店因生意萧条而停业.

Graham was right to condemn his players for lack of ability, attitude and application.───格雷厄姆指责队员们技艺不佳、态度不端正而且不够努力，他说得没错。

Some people refer all the troubles to bad luck instead of lack of ability.───有些人把自己所有的苦恼都归咎于运气不佳,而不认为是缺乏能力.

We are growing impatient with the lack of results.

The project was scuppered by lack of money.

There is no lack of vegetable.

Our main problem is lack of cash.

Lack of money necessitated a change of plan.

The leaves languished from lack of water.

Lack of work brings a thousand diseases. 

He felt faint for lack of food.

Lack of knowledge is darker than night.