标点符号的使用是语言能力的基本功之一。考试说明对此有明确的要求：正确使用标点符号。要做到这一点，确实不易，然而仔细琢磨研究还是有技巧和规律可寻的。现仅就破折号和冒号的相近用法，做一点探讨。我们在阅读和写作时，很容易将破折号表示说明或注释的用法同冒号中... The use of punctuation is one of the basic skills of language skills. The exam instructions have clear requirements for this: Correct use of punctuation. It is indeed not easy to do this, but there are still skills and laws that can be found after careful study. Now we only discuss the similar usage of dash and colon. When we are reading and writing, it’s easy to use a dash to indicate the usage of the description or annotation in the colon...