在20世纪，其他音乐家会使用前四个音符创作不同类型的音乐，如说唱乐和摇滚乐。
In the 20th century, the first four notes were used by other musicians to make different types of music like hiphop and rock and roll.
前四个章节介绍了开放源码。
我们将遵循列表中的前四个步骤来开发我们的样本应用程序。
We'll be following the first four steps in the list to develop our sample application.
应用推荐