termites memorialise their industry in sculpture. 白蚁辛勤的劳作体现在雕塑上

216. It's estimated that over one third of the grass that grows on Earth
     据估计 地球上超过三分之一的草
217. will be harvested by an insect.
     都会被这种昆虫采去
218. In northern Australia,
     在澳大利亚北部
219. termites memorialise their industry in sculpture.
     白蚁辛勤的劳作体现在雕塑上
220. These astonishing mounds are 10 feet tall.
     这些令人叹为观止的白蚁丘有三米高
221. They're always built on a north-south axis,
     全部建成南北走向
222. which is why their builders are called compass termites.
     因此它们的建筑者被称为罗盘白蚁

来自《行星地球 第二季 第五集 Planet Earth S02E05 草原》第 219 行