@ dissolve vt. formally end a marriage, organization, etc. 解除；解散 @ v. mix with a liquid and become part of it 溶解
@ frequency n. [U] the number of times that sth. happens 频率
@ prime a. 1. of the best quality 一流的，最好的 @ 2. most important 首要的；主要的
@ burden n. [C] a difficult responsibility that one has to deal with 负担
@ overtake (overtook, overtaken)
@ vt. take control of sb. or sth. 控制；压倒 @ v. go past a vehicle or person 超过；追上
@ theme n. [C] the main subject of a talk, book, film, etc. 主题
@ agenda n. [C] a list of things to be dealt with or to be discussed at a meeting 议程
@ industrialize vt. (BrE industrialise) (cause to) become industrially developed （使）工业化
@ maintain vt. 1. provide sb. with money or food 赡养；养活 @ 2. make sth. stay the same 保持；维持
@ 3. keep a building, a machine, etc. in good condition by checking or repairing it regularly 保养
@ contribute v. 1. give one's share of money, help, advice, etc. to achieve sth. 贡献；捐助 @ 2. (~ to sth.) help to make sth. happen 促使；促成
@ cash n. [U] money in the form of coins and notes 现金
@ hay n. [U] grass which is cut, dried and used as animal food or as covering material 干草
@ vary v. (cause to) change or be different （使）不同；改变
@ adequate a. enough or satisfactory 足够的；令人满意的
@ optional a. left to individual choice 可选的；非强制的
@ inflation n. [U] an economic situation in which prices increase so that money becomes less valuable 通货膨胀
@ weave vt. (wove, woven)
@ 1. make sth. by twisting threads or thin pieces together 编；织 @ 2. invent a story or plan 编造
@ textile n. [C] a cloth or fabric made by weaving 纺织品，织物
@ casual a. 1. showing little care or concern 漠不关心的；冷淡的 @ 2. relaxed and informal 放松的，随意的
@ migrate vi. 1. move from one place to another 移居，迁移
@ 2. (of animals) travel to a different place, esp. when the season changes 迁徙；洄游
@ scrape vt. remove sth. from a surface, esp. by using a sharp edge 刮；擦
@ currency n. [C, U] the system of money in use in a certain country 货币，通货
@ urgent a. very important and needing to be dealt with quickly or first 紧急的，急迫的
@ awareness n. [sing., U] knowledge or understanding of a subject or situation 意识；认识
@ subtract v. take a number or amount from another number or amount 减去，扣除
@ scholarship n. [C] a sum of money awarded to a student to help with their education 奖学金
@ transportation n. 1. [U] the activity of traveling from one place to another 交通 @ 2. [U] the activity of moving people or things from one place to another 运输
@ purse n. [C] a small bag used esp. by women for carrying money in （女式）钱包
@ trim vt. 1. reduce the amount or number of sth. 削减，缩减 @ 2. cut sth. so that it looks neater 修理；修剪
@ debt n. [C] sth. owed to sb. else 债；欠款
@ rare a. not happening very often 稀少的；罕见的
@ extensive a. large in amount or degree 大量的；广泛的
@ invisible a. that cannot be seen 看不见的
Phrases and Expressions
@ serve as perform certain duties; fulfill the purpose of 担任；起...作用
@ dozens of a lot of 许多；数十个
@ vary from... to 从...到...不同
@ to the point to a degree that 达到...的程度
@ go on to sth. do sth. after you have finished doing sth. else 继续做（另一件事）
@ scrape by have just enough money to live 勉强生活
Proper Names
@ Judith Bruce 朱迪思·布鲁斯（人名）
@ the Population Council 人口委员会
@ Ghana 加纳（西非国家）
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