1.concealed-covered-隐藏着的
eg. She can't demonstrate her concealed love.
2.conclusive-definitive-最后的
eg.She knew it may be the conclusive word.
3.concrete-specific-具体的
eg.How can she express her concrete care for him.
4.confine-limit/restrict-限制
eg.Distance can't confine her miss for him.
5.confirm（con-强调+firm-坚定的）-uphold（hold up-举起）-证实
eg.For confriming her love, she cut off her hair.
6.conflicting-opposing-冲突，抵触的
eg.When konwing his heart, a conflicting emotion appeared.
7.consequence-result-结果
8.conserve-stone/retain-保存，维护
eg.We must conserve our woodlands for future generations.
9.considerable-substantial-大量的
eg.She is avid to compose considerable things to show her love.
10.consistent-constant-持续的
eg.She will love him consistently until 2020.
11.conspicuous-noticeable-显著的
eg.It is conspicuous to see her sorrow.
12.constituent-component-成分
eg.Caffeine is the active constituent of drinks such as coffee and tea.
13.constitute-make up-构成
14.contemporary-written at that time-同时代
15.convergence-gathering-聚集
16.convert-change-转变
17.correspondingly-similarly-相应的
18.count-weigh-有价值，有分量
19.counteract-negate-抵消
20.counterpart-version-复本
21.critical judge of fine arts-connoiseur（con共同+noise噪音-让别人能够共同理解噪音）-鉴赏家
eg.Fry was a connoisseur of Renaissance of art.
22.cumbersome-burdensome-麻烦的
eg.Doctors are complaining that the system is cumbersome and bureaucratic.
23.dampen-moisten-使潮湿
24.daring（dare+ing-敢做的）-bold（b+old-年长的人通常不会太鲁莽）-勇敢的，鲁莽的
eg.In a surprisingly bold move, he is threatening court action against the company.
25.deft（大大的把别人left-有技巧）-skilled-熟练的
eg.He finished off the painting with a few deft strokes of the brush.
26.deliberate（de使得+liberate自由-使得某人自由需要谨慎仔细再三考虑的）-careful-仔细的
eg.The speech was a deliberate attempt to embarrass the government.
27.demand（de向下+mand命令-向下命令说明需求）-require-需求
28.demise（de向下+miserable悲惨的-mise-悲惨之下的悲惨-死亡）-death-死亡
29.demonstrate-show-表明，展示
30.dense-thick-稠密的
31.depress（de向下+press压-向下压即为压低）-lower
32.derive/acquire-obtain-得到
33.detectable-apparent-可查觉的
34.detecting-finding-探测到的
35.devastated（de表加强+vast空+ate使-使得完全变空的-破坏）-ruined-破坏
36.developing-evolving-发展的
37.devote to-dedicate（de加强+dic分配+ate动词后缀-为...分配出自己的精力）/specialize in-致力于
38.dictate（dict说+ate动词后缀-口述，命令）-determine
39.diffuse（dif分开+fus倾泻+e-分开倾泻-散布）-travel-扩散，传播
40.disaster-catastrophe-灾难
41.discard（dis分离+card纸牌-把牌扔出去-丢弃）-get rid of-丢弃
42.dispute（dis分离+put思考+e-分开思考即为争论）-argument-争论
43.disseminate-spread-散布
44.distinct-separate-清晰的
45.distinguish-differentiate-区分
46.divergence（di分离+verge边缘）-difference-差异，变化
eg.There is a substantial divergence of opinion within the party.
47.diverse-dissimilar-多种多样的
48.diverse-different-不同的
49.dividing line-boundary-边界
50.do sth repeatedly-iterate-重复，反复
