OK, says it says enter a float. I give it something that can be converted into a float, it says fine. I'm going to go back and run it again though. If I run it again, it says enter a float.

好了，看到他说输入一个浮点数,我输入它可以转换为浮点数的值,那没问题，我回过来再运行一遍,如果我再运行一遍。

麻省理工公开课 - 计算机科学及编程导论课程节选

We're used to thinking about sound being tranduced; being converted by acoustic waves into electrical signals that can be recognized by your iPods.

我们想想声音信号的转换过程,声音由声波转化为电子信号,你的iPod能够识别这种信号

耶鲁公开课 - 生物医学工程探索课程节选