OG的例题，请教

ecoeco

Scholars offer three related but different opinions about this puzzle.One opinion is that paintings were a record of the seasonal migrations made by herds.Because some paintings were made directly over others,obliterating them,it is probable that a painting's value ended with the migration it pictured.Unfortunately,this explanation fails to explain the hidden locations,unless the migrations were celebrated with secret ceremonies.

我今天刚开始做OG``例题真没看懂..绘画跟季节变化有什么关系……

longl

画的是seasonal migrations，就是季节性迁徙的动物吧，候鸟什么的。