because around 90% of the things we see drifting are plastic 因为我们见到的漂浮物中有90%都是塑料
he may have been drifting on ocean currents for months. 可能已经在洋流中漂流了数月
Even a small piece of drifting kelp can become valuable. 哪怕是一小片漂浮的海藻也会变得弥足珍贵
as Africa, drifting northwards, collided with the southern edge of Europe. 原因是非洲板块向北漂移 与欧洲南麓相撞