When you think about it, debris were just floating on the ocean surface becomes colonized with barnacles, mussels, all sorts of different organisms, and then it becomes heavier and heavier and at a certain point it then starts to sink.
當你想到這一點時,漂浮在海洋表面的碎片會被藤壺、貽貝和各種不同的生物所佔據,然後它變得越來越重,到了一定程度就會開始下沉。