节目采用张红岩编著的《词以类记—TOEFL iBT词汇》，只听写英文单词，听完一个单词回车另起一行听写下一个单词，句子和中文不用听写。 Hints：本期75个单词。
rank discrete symmetry sequence dual induction inference circular circulate circulation probability qualitative dispersion vertical plumb upright cubic circuitous facet sphere loop triangle circumference cone caliber diameter figure circle cube column angle area ellipse diagram polygon intersect radius rectangle square parallel deduction degree geometry mathematics arithmetic statistics even decimal ratio estimate calculate enumerate evaluate variant variable abacus aggregate sum calculation calculator calculus digit function subtract addition minus multiply multiplication numeral percentage plus equation quarter fraction divide
rank v排序 排行 n等级 He ranked first in the class. The railroad novel was not treated as the first-rank novel. discrete 不连续的 离散的 separate A computer can perform millions of discrete functions per second. "symmetry 对称性，匀称 balance, harmony (sym共同+metry测量——两边测量都一样)" "sequence 序列 procession, progression" dual 二重的 两层的 double， twofold "This stove has dual ovens, so you can bake bread and roast meat at the same time." induction 感应 感应现象 归纳 inference 推论 "circular 循环的 圆的 circuitous, roundabout" The carpenter used a special saw(锯) to cut a circular hole. circulate 使循环 The rumor circulated through the office. circulation 循环 A tight ring cut off circulation to my finger. probability 可能性 或然性 概率 qualitative 性质上的 定性的 dispersion 离差 差量 "vertical 垂直的 perpendicular, upright" "plumb 垂直的 straight, vertical" "upright 垂直的（地） 笔直的（地） vertical, upstanding" An empty sack cannot stand upright. cubic 立方体的 "circuitous 迂回的 indirect, roundabout" You could tell Mary was evading our question when she gaev a circuitous response. facet 平面 The stonecutter decide to improve the rough diamond by providing it with several facets. "sphere 球体 ball, globe" The earth is usually represented by a sphere. "loop 圈 环 环孔 circle, ring" triangle 三角形 circumference 圆周 The circumference of the round table is five feet. cone 圆锥 The top of a cone comes to a sharp point caliber 口径 diameter 直径 "figure 图形 形状 design, shape" circle 圆周 圆形物 派系 循环 cube 立方体 立方 column 圆柱 柱状物 angle 角落 角 area 范围 区域 面积 地区 空地 ellipse 椭圆 椭圆形 "diagram 图表 sketch, drawing" A good diagram helped me assemble the bike. polygon 多角形 多边形 "intersect 相交 cross, meet" These two fences intersect at the creek. radius 半径 rectangle 长方形 矩形 square 正方形 广场 平方 直角尺 parallel 与..平行vt 平行的 His paintings parallels that of Qi Baishi. deduction 扣除 扣除之量 推论 演绎法 degree 度数 度 程度 geometry 几何学 mathematics 数学 arithmetic 算术 Arithmetic is a basic school subject statistics 统计学 统计表 even 平的 偶数的 odd奇数 The children skated on the sidewalk's even surface. decimal 十进制的 小数 The metric system（公尺法 公制） is a decimal system. "ratio 比率 proportion, rate" The ratio of men to women is 3 to 1. "estimate 估计 gauge, compute" I estimate that Tom will be promoted to department manager. calculate 计算 估计count 计划 Mary calculated her monthly expenses. "enumerate 枚举 计数 count, numerate" Sam can enemerate all the presidents of the United States. "evaluate 评价 估计 estimate, assess" The assessor evaluated the plot of land before Anne solt it. variant 变量 variable variable 变量 abacus 算盘 aggregate 合计 总计 集合体 sum 总数 和 金额 算术题 calculation 计算 考虑 calculator 计算机 计算器 calculus 微积分学 digit 阿拉伯数字 手指或足趾 一指宽 function 函数 subtract 减去 deduct "If you subtract 2 from 6, you get 4." addition 加法 minus 负的 减的 减去 复数 multiply 乘 增加 multiplication 乘法 增加 multiplication table 乘法表 numeral 数字 percentage 百分数 百分率 百分比 plus 加上 正的 加的 equation 等式 1+2= 3 is a simple equation. quarter 四分之一 A quarter of a century would be 25 years. fraction 分数 divide 分割 除 The woman's estate was divided among her children.