delegate n.代表

While US executives give both responsibility and authority to their employees, Japanese executives delegate only authority—the responsibility is still theirs. (03-9)
delicate adj. 精巧的，精致的，脆弱的，微妙的，棘手的，灵敏的

One of his eyes was injured in an accident, but after a delicate operation, he quickly recovered his sight. (97-6)

demonstrate vt. 示范，证明，论证

Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth. (02-6)

deportation n. 移送，充军，放逐 (04-6)

depression n. 沮丧，消沉，低气压，低压

Depression is often caused by the cumulative effects of stress and overwork. (02-1)

deprive vt. 剥夺，使丧失

In his last years, Henry suffered from a disease that slowly deprived him of much of his sight. (2006.6)

在晚年，亨利受到一种疾病的折磨，这种病慢慢的损伤了他的大部分视力。

desert n. 沙漠 (pl.)应得的惩罚vt. 抛弃

Many people think of deserts as barren regions, but numerous species of plants and animals have adapted to life there. (99-6)

desirable adj. 值得要的，合意的，悦人心意的

Conflict, nevertheless, is very likely to occur, and is probably an essential and desirable element of human societies. （96-1）

desperately adv.拼命地, 失望地

destructive adj. 破坏性的

Hurricanes are killer winds, and their destructive power lies in the physical damage they can do. (2001.1)

飓风具有能够伤及人命，他的破坏力主要在于他能够造成物理伤害。

detain v.拘留，留住，阻止

determine v. 决定，确定，测定

digest n. 分类，摘要

dimension n. 尺寸，尺度

diminish v. （使）减少，（使）变小

diplomatic adj.外交的，老练的

discipline 1.纪律，学科

disease n. 疾病，弊病

dismiss vt. 解散，下课，开除，解职

disservice n. 伤害，虐待，

distinction n. 区别，差别，级别，特性

distinguish 1v.区别，辨别.

distress n. 悲痛，不幸， 危难，忧伤

divorce n. 离婚，脱离

domestic adj. 家庭的，国内的，驯服的，与人共处的

dominate v. 支配，占优势

dormant adj. 静止的，隐匿的

downturn n. 低迷时期

drag v. 拖，拖曳，缓慢而费力地行动

dramatic adj. 戏剧性的，生动的

drawback n. 缺点，障碍，退税

Many pure metals have little use because they are too soft, rust too easily, or have some other drawbacks. (2002.1)

很多纯金属用处不大，因为它们它软，很容易生锈，或者还有其他一些缺点。

dubious adj. 可疑的，不确定的

dully 1.adv. 钝地，不清楚地，迟钝地

duplicate adj. 复制的，副的，两重的，完全相同的

dynamic adj. 动力的，动力学的，动态的

eager adj. 热心于，渴望着

ease n. 安逸，安心，悠闲，不费力

effective adj. 有效的，有生力量，给人深刻印象的，

ego n. 自我，自负，利己主义

element n. 要素，元素，成分，元件，自然环境

eliminate vt. 排除，消除

She once again went through her composition carefully to eliminate all spelling mistakes from it. （91-6）

elite n. [集合名词]精华，精锐，中坚分子

embarrass vt. 阻碍，麻烦，使困窘，使局促不安

embrace vt. 拥抱，包含，收买，信奉

emotion n. 情绪，情感，感情

emphasize vt. 强调，着重

enhance vt. 提高，增强

enormous adj. 巨大的，庞大的，凶暴的

enterprise n. 企业，事业，计划，事业心进取心