各种特殊符号的英文叫法 + plus 加号；正号- minus 减号；负号 ± plus or minus 正负号 × is multiplied by 乘号÷ is divided by 除号 ＝ is equal to 等于号≠ is not equal to 不等于号≡ is equivalent to 全等于号 ≌ is equal to or approximately equal to 等于或约等于号 ≈ is approximately equal to 约等于号 ＜ is less than 小于号＞ is more than 大于号 ≤ is not less than 不小于号≥ is not more than 不大于号 ≢ is less than or equal to 小于或等于号≣ is more than or equal to 大于或等于号 % per cent 百分之„ ‟ per mill 千分之„ ∞ infinity 无限大号∝ varies as 与„成比例 √ (square) root 平方根 ∵ since; because 因为∴ hence 所以∷ equals, as (proportion) 等于，成比例 ∟ angle 角 ≨ semicircle 半圆 ≦ circle 圆○ circumference 圆周π pi 圆周率△ triangle 三角形 ≧ perpendicular to 垂直于 ∪ union of 并，合集∩ intersection of 交，通集 ∫ the integral of „的积分 ∑ (sigma) summation of 总和 ° degree 度† minute 分‡ second 秒 ℃ Celsius system 摄氏度 { open brace, open curly 左花括号} close brace, close curly 右花括号 ( open parenthesis, open paren 左圆括号) close parenthesis, close paren 右圆括号 () brakets/ parentheses 括号 [ open bracket 左方括号] close bracket 右方括号 [] square brackets 方括号 . period, dot 句号，点 | vertical bar, vertical virgule 竖线 & ampersand, and, reference, ref 和，引用 * asterisk, multiply, star, pointer 星号，乘号，星，指针 / slash, divide, oblique 斜线，斜杠，除号 // slash-slash, comment 双斜线，注释符 # pound 井号 backslash, sometimes escape 反斜线转义符，有时表示转义符或续行符 ~ tilde 波浪符 . full stop 句号, comma 逗号: colon 冒号; semicolon 分号? question mark ! exclamation mark (英式英语) exclamation point (美式英语) ‘ apostrophe 撇号 - hyphen 连字号– dash 破折号„ dots/ ellipsis 省略号 “ single quotation marks 单引号 “” double quotation marks 双引号 ‖ parallel 双线号 & ampersand = and ～ swung dash 代字号 § section; division 分节号 → arrow 箭号；参见号 问号 ：['mainəs 10 minus 5 leaves 5. 1. 负的,减去的[B] The temperature is now minus 5 degrees. 现在气温为零下五度。 2. 略低一点的,略差一些的[A] I got an A minus. 我得了一个A-。 3. 不利的[B] A boy might live in a minus neighborhood but not be a delinquent. 一个男孩子可以生活在一个差劲的街坊而不沦为罪犯。 ['mʌltiplai] 1. 乘,使相乘[(+by/together)] Four multiplied by five is twenty. 五乘四得二十。 2. 使(成倍地)增加 Such examples could be multiplied indefinitely. 这样的例子不胜枚举。 3. 使繁殖 Hot weather multiplied the bacteria in the food rapidly. 炎热的天气使食品中的细菌迅速繁殖。 本文来源：https://www.wddqw.com/doc/1b475c407d21af45b307e87101f69e314332fa78.html