And two, to give you a better sense of design especially as your programs get a little more involved and they play or they run for more than just a few seconds time.

另一方面，使你们对设计更有感觉,尤其是你的程序要适用于更多的应用环境或,要运行不止几秒钟时间的时候。

哈佛公开课 - 计算机科学课程节选

We're going to hear just a few seconds of this.

我们就听几秒钟。

耶鲁公开课 - 聆听音乐课程节选