The reporters saw the machine at the Jet Propulsion Laboratory in Pasadena,California.

VOA: special.2011.04.26

We saw some students who are trying to make a machine that automatically decorates cakes.

我们看到有些同学在制造能自动装饰蛋糕的机器。

我遇到的天才们 - SpeakingMax英语口语达人

We saw some students who are trying to make a machine that automatically decorates cakes.

我们看到有些同学在制造能自动装饰蛋糕的机器。

我遇到的天才们 - SpeakingMax英语口语达人