课程重点+课后作业4.《有趣的标点符号》我会这一招标点符号歌句号(。)是个小圆点，用它表示说完话。逗号(，)小点带尾巴，句内停顿要用它。顿号(、)像个芝麻点，并列词语点中间。冒号(：)小小两圆点，要说话儿写后边。问号(？)好像耳朵样，表示一句问话完。叹号(！
错误:For long sentences， the better alternative is to make them two separate sentences， with either a period or a semi-colon separating them， rather than using lots of commas， which I find annoying， and others will also， so avoid doing this.
