But the man who owns this yard has 15 children, so they keep going until they built their very own luge, a 300-foot-long masterpiece that gave a ride lasting longer than 20 seconds.

但是这个院子的主人有 15 个孩子，所以他们继续前进， 直到他们建造了自己的雪橇， 这是一个 300 英尺长的杰作， 骑行时间超过 20 秒。