It couldn't be truly circular, like a parasol, or, you know, octagonal, like a stop sign, because if it was too wide, this structure–which is, again, bolted to a bus pole–would blow over in the wind.
它不可能像遮阳伞一样是真正的圆形, 或者像停车标志一样是八形, 因为如果它太宽, 这个结构▁-▁-▁同样是固定在公交杆上▁-▁-▁被风吹翻。