过了几天，男童子军团长不得不离开几天。

Several days later, the scoutmaster had to be away for a day.

(一般大概需要150个小时的计划和实施，尼克的项目用了将近750个小时)“我的童子军团长告诉我”，“当你选择了你的项目，要坚持到最后”，他说。

Nick's project took nearly 750 hours. "My scoutmaster told me, 'When you pick your project, do something that's going to last,'" he says.