英文逗号（英语中逗号用法也有大讲究）,大家知道吗？英语中逗号（comma）的使用可是很重要的，说不定还能救人一命：,英语中如果没用对逗号的话，会让你看起来很没文化哦。下面来讲解一下英语中逗号的正确用法。,1.用在连词前面,连词：and, but, for, or, nor, yet, so,例句：I went running, and I saw a duck.,2.用在从句后面,例句：When I went running, I saw a duck.,3.分隔同位语,例句：A mallard, a kind of duck, attacked me.,4.分隔一系列的物品,例句：I saw a duck, a magician, a liquor store when I went running.,5.用在引导性副词后面,例句：Unsurprisingly, I saw a duck when I went running.,6.用在引号前面,例句：The duck said, “Quack!”,7.分隔地址中的各部分,例句：Cleveland, Ohio, is known for their duck population.,8.分隔日期中的各部分,例句：Friday, January 13t百思特网h, 2017, will be rubber duckie day.,9.用在句子开头独立的Yes或No后面,例句：Yes, the duck bite me.,10.直接称呼某人或某物时,例句：“Duck, do you mind?”,11.用在修饰同一个名词的两个形容词之间,例句：I saw the big, mean duck when I went running.,12.分隔否定句,例句：I saw a duck, not a baby seal, when 百思特网I went running.,13.数字中每三位数就要用逗号分隔开,例句：The duck had over 10,000 friends.,除了逗号，英语中还有很多其它标点符号，你都会用英语来表达它们吗？,+ 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 e百思特网quivalent 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 greater 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,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 问号,! 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,来源：Business Insider、英语必修班,