translation.en: Well, we found of course that this material became overgrown with algae, and we needed then to develop a cleaning procedure, and we also looked at how seabirds and marine mammals interacted, and in fact you see here a sea otter that found this incredibly interesting, and would periodically work its way across this little floating water bed, and we wanted to hire this guy or train him to be able to clean the surface
translation.zh: 当然我们发现这种材料 会被海藻覆盖，我们就需要去 设计一种清洁的方法， 我们也观察了海鸟类和海洋哺乳类的相互影响， 你会看到一只海獭对此很感兴趣， 它时不时地穿梭于 这个小小的浮动水床，我们好想雇佣这个小家伙 或训练它能来清洁水面