介绍： 1.lack [læk]
v. /n. 缺乏, 不足
One disadvantage of living in the town is the lack of safe places for the children to play. 住在城市的一个坏处就是孩子们没有安全的地方玩耍。
He just lacks a little confidence. 他就是缺一点儿自信。

2.shortage ['ʃɔːtɪdʒ]
n. 缺乏，缺少，不足
to be short of time/space 缺乏时间/空间...

介绍： 1.lack [læk]
v. /n. 缺乏, 不足
One disadvantage of living in the town is the lack of safe places for the children to play. 住在城市的一个坏处就是孩子们没有安全的地方玩耍。
He just lacks a little confidence. 他就是缺一点儿自信。

2.shortage ['ʃɔːtɪdʒ]
n. 缺乏，缺少，不足
to be short of time/space 缺乏时间/空间
There’s a shortage of food and shelter in the refugee camps. 难民营里食物和住所短缺。

3.scarce [skeəs]
adj. 缺乏的，不足的
scarce resources 资源匮乏/稀缺资源
Jobs are becoming increasingly scarce.工作职位变得越来越少。
scarcely adv. 几乎不
He was scarcely able to cope with the situation. 他几乎不知道如何去应付这个局面。

4.bare [beə]
adj. 空的，赤裸的
bare land 裸地，不毛之地
The top of the hill was bare. 小山顶上光秃秃的。
barren 贫瘠的，不能生育的
The formerly barren land has been changed into stretches of fertile fields. 昔日的荒地今天成了良田。
barely adv. 仅仅，几乎不

5.deficit ['defɪsɪt; 'diː-]
n. 赤字，不足额
They're ready to cut the federal budget deficit for the next fiscal year. 他们已准备好在下一个财政年度削减联邦预算赤字。

6.deficient [dɪ'fɪʃ(ə)nt]
adj. 不足的，有缺陷的
deficiency n. 缺陷，不足
The crops are suffering from deficient rain. 庄稼因雨量不足而遭受损害。

7.sufficient [sə'fɪʃ(ə)nt]
adj. 充足的，足够的 = enough
It was thought that he’d committed the crime but there wasn’t sufficient evidence to convict him. 他被认为犯了罪但是没有足够的证据能证明他有罪。
sufficiency n. 充足 insufficient adj. 不足的
suffice v. 使足够
Only an international effort would suffice to deal with them. 只有全世界一起努力才足以解决这些问题。

8.adequate ['ædɪkwət]
adj. 充足的，适当的
adequacy n. I didn't have adequate time to prepare. 我没有足够的时间做准备。
inadequate 不充分的，不适当的