181. demand sth. of sb.向某人要求（非物质的）东西demand sth. from sb.向某人要求（物质的）东西

182.in demand有需求；on demand受到要求时

183. be dependent on依靠

184. deprive sb. of sth.剥夺某人某物

185. derive…from（=obtain…from）从…取得，由…来的derive from（=come from）起源于

186. despair of（=lose all hope of）绝望

187. in despair绝望

188. despite（=in spite of）不管，尽管

189. in detail详细地

190. deviate from偏离，不按…办

191. on a diet吃某种特殊饮食，节食

192. differ from…in与…的区别在于…

193. in difficulties…有困难，处境困难，

194. discharge sb.（from）…for（=dismiss sb. from a job for）因…解雇，开除

195. fall back（=retreat，turn back）撤退；in disorder慌乱地，狼狈不堪