Some children bring all the tools they are on and one of the boys share he wants to bring a ice cream machine.

一些孩子画上了他们喜欢的所有工具,其中一个男孩,告诉大家他想带一台冰激凌机。

麻省理工公开课 - 媒体、教育、市场课程节选

Some children bring all the tools they are on and one of the boys share he wants to bring a ice cream machine.

一些孩子画上了他们喜欢的所有工具,其中一个男孩,告诉大家他想带一台冰激凌机。

麻省理工公开课 - 媒体、教育、市场课程节选