该讲的都在六级的帖子里说了，这里就只提一点，我继续开始做四级词汇，一是为了方便大家学习，二是让自己重新复习一遍四级词汇，我不希望我的考试只是为了一张纸，我要么真正掌握英语，要么撒手不做。
Have a good trip!
dairy
n. 牛奶场，乳品店；乳制品
adj. 牛奶的，乳品的
dam
n. 堤坝，水闸
damage
vt. 损害，毁损
A lot of houses were damaged by the flood. 许多房子被洪水冲毁了。
n. 毁损；(复数)损坏赔偿金
[难点]
do damage to 对…有损害
damp
adj. 潮湿的，微湿的
n. 潮湿，湿气
darling
n. 心爱的人
dash
n. 猛冲，飞奔
He made a dash for the goal. 他向终点冲去。
the hundred-meters dash 百米短跑
n. 破折号
vi. 猛冲，飞奔
vt. 猛掷，打碎
He dashed the plate to pieces.
data
n. 数据，资料
dawn
n. 黎明
vi. 破晓
The day dawned. 天亮了。
daylight
n. 白昼，日光；黎明
[同]dawn
deaf
adj. 聋的，装聋的，不愿听的
[难点]
turn a deaf ear to 对…置若罔闻
He turned a deaf ear to our requests for help. 他对我们的援助请求置之不理。
debate
n. 辩论，讨论
[同]discussion
[难点]
debate sth. with sb. 与某人辩论某事
debate about sth. 讨论/辩论某事
debt
n. 债务，欠债
[难点]
in debt 负债，欠债
out of debt 还清债务
decade
n. 十年，十年期
decay
vi. 腐烂，腐朽；衰败，衰落
n. 腐烂，腐朽；衰败，衰落
[难点]
fall into decay 衰落，衰败
in decay 腐朽
deceive
v. 欺骗，蒙骗
[难点]
deceive sb. Into doing sth. 骗某人做某事
be deceived in sb. 看错某人
deck
n. 甲板；桥面，层面
decorate
vt. 装饰，装潢
She decorated the room with flowers. 她用花装饰房间。
第二十天
decrease
v. 减少，降低
decrease in number 数目减少
n. 减少
[难点]
on the decrease 在减少中
decrease by 减少了
The population of the village has decreased by 150 to 500.
该村人口减少了150，只剩下500人。
deduce
vt. 演绎，推论，推断
deduce a conclusion from premises 从前提推出结论
[难点]
deduce from 由…推论
deer
n.(单复数同形)鹿
defect
n. 缺点，缺陷，短处
[同]fault
defence
n. 防御，保卫；防御物，工事；辩护，答辩
[难点]
in defence of … 保卫…
They decided to fight in defence of their country. 他们决心为保卫祖国而战。
define
vt. 解释，下定义；限定，规定
The powers of a judge are defined by law. 法官的权力法律有明文规定。
definite
adj. 明确的
a definite answer 明确的答复
[同]explicit
adj. 肯定的
[同]certain
definitely
adv. 一定地，肯定地；明确地，确切地
definition
n. 定义，释义，解说
delete
vt. 删除
[同]erase
delicate
adj. 纤细的，娇嫩的；精美的，精致的
jewellery of delicate workmanship 精工镶嵌的珠宝饰物
adj. 病弱的
in delicate health 身体娇弱
adj. 易碎的，需小心照料的；微妙的，棘手的
delicious
adj. 美味的；芬芳的；有趣味的
deliver
v. 解救，释放；投递，送交；发表，表达
deliver a speech 发表演说
v. 使分娩，接生
deliver a woman of twins 为一妇女接生双胞胎
[难点]
deliver sb. From … 从…中解救某人
deliver sth. (over)to sb. 把某物交付给某人
delivery
n. 投递，送交
[难点]
on delivery 送达时，交货时
take delivery of 收到
democracy
n. 民主政治，民主主义；民主制度，民主国家
democratic
adj. 民主的，民主主义的
demonstrate
vt. 说明，论证；表露，显示
[同]
demonstrate against … 示威/反对…
dense
adj. 密集的，浓密的
a dense fog 浓雾
density
n. 密集，稠密；密度
deny
vt. 否认；拒绝给予
[难点]
deny doing ….
It cannot be denied that … / There is no denying the fact that …
不容否认…(我们必须承认…)
depart
vt. 离开，出发
[难点]
depart for 动身去…
depart from 离开，起程
department
n. 部门，系
departure
n. 离开，出发
dependent
adj. 依靠的，依赖的；从属的
[难点]
be dependent on 依靠…，由…决定
[反]be independent of
deposit
vt. 存放，寄存，储蓄；使…沉淀
n. 存款；沉积物；定钱，押金
[难点]
deposit sth. with sb. 把某物寄放在某人处
He deposited the papers with his lawyer. 他将文件交于律师保管。
depress
vt. 使沮丧，使低沉
The failure depressed him. 失败使他郁郁寡欢
vt. 降低，压低；使萧条(不景气)
depth
n. 深度；深厚
a depth of feeling 深厚的感情
derive
v. 取得，得到
She derived great pleasure from her studies. 她从读书研究中得到极大的乐趣。
v. 起源，来由(from)
descend
vi. 下来，下降；传下，遗传
This custom descended from generation to generation. 这习俗一代一代传下来。
[同]pass down
[难点]
descend from … 从…下来
We descended from the mountain. 我们从山上下来。
be descended from … 为…的后裔
According to the Bible, we are all descended from Adam. 根据圣经，我们都是亚当的后裔。
descend to (doing)sth. 屈辱到，堕落到
You would never descend to cheating. 你绝不至于堕落到欺骗。
第二十一天
description
n. 描写，形容；种类，式样
[难点]
beyond description 难以形容
The scenery was beautiful beyond description. 这景色美不可言。
give a description of … 描述某事
deserve
- 考试辅导
