Planting trees isn't arranging flowers: Even if there are a few real trees in the city, they don't have much connection to people, who are almost always in too much of a hurry to think about stopping under a tree. So we just stand here symbolically on either side of the street.
即使都市還有一些真的樹，也與人們沒有太大關係。匆忙的腳步使他們不太可能再駐足樹下，樹只是象徵性地站在道路兩旁。