其实,这两个符号的用法和中文很接近
冒号 == 后面跟的内容,是对前面内容的
完善 1、用在
公函上收信人的称呼 == Dear Sir: (可变逗号 -- 下面是要说的话)
2 用于分开标题和副标题 (当一标题需要进一步说明时所加上的副标题)
Math Applications: Using Calculus to Determine the Age of Rocks
3、对句子加以补充,使其完善
a) 冒号后跟单词
A repairman must have three things: a screwdriver, a hammer, and a saw.
b)冒号后跟句子
The plan contains:
(1) .....
(2) ....
(3) ....
还有 == 时间的分割 15:30;比例 4:1,,,,,,,,,,,
破折号 == 后面跟的内容,相当于前面内容的
同位语 1、进一步解释
It's an environmental issue. — That's not a small matter.
2、插入
Jane -- one of my friends -- came to see me yesterday. (可以变逗号或括号)
3、转折
"And may I ask—"said Pill,"but I thin it's better for you to ask him.
4、说明
Only one thing I have to do -- reading.