1.
The quality or condition of being inadequate.
不足，不完备不足、不充分的性质或条件
2.
in short supply
供应不足,缺乏的,
3.
a dearth of information
情报[知识]的不足
4.
insufficient justification
理由不足效应 理由不足效应
5.
severe mental retardation
重度智能不足 重度智能不足
6.
Lack of illumination caused by an electrical power failure.
照明不足由电力缺乏引起的照明不足
7.
chronic undernutrition (stunting)
长期营养不足（发育不全）
8.
Fear not the future, weep not for the past.
未来不足惧，过去不须泣。
9.
The low selling price more than offset the disadvantages of the house
这幢房子售价低,足以抵消其不足之处。
10.
To load(a firearm) with an insufficient charge.
未给…装足火药给（火器）填充弹药不足
11.
To prove deficient or lacking; perform ineffectively or inadequately.
表现欠佳证明不足或不够；活动受损或不充足
12.
Mine is a simple nothing.
我的东西实在不足一道。
13.
lack of uniformly optimal plan
一致最优方案的不足
14.
My head aches for want of sleep.
我因为睡眠不足而头痛。
15.
contemptibly small in amount.
在数量上不足称道的少。
16.
We lost a lot of sleep.
我们的睡眠远远不足。
17.
The contented man is never poor,
“知足者永不贫穷，
18.
the discontented never rich.
不知足者永不富有。