這裏的市鎮為了給樹木避孕,特意隻種植公樹,盡量不種母樹,以免母樹把種子撒到綠地,不停地長出小樹,處理起來很麻煩。所以公樹到了發情期就把花粉密度弄得很高,想花粉能找到母樹。可是母樹實在太少啦,於是花粉就跑到我們的鼻子裏去啦 :-)
這裏的市鎮為了給樹木避孕,特意隻種植公樹,盡量不種母樹,以免母樹把種子撒到綠地,不停地長出小樹,處理起來很麻煩。所以公樹到了發情期就把花粉密度弄得很高,想花粉能找到母樹。可是母樹實在太少啦,於是花粉就跑到我們的鼻子裏去啦 :-)
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