他们发现无论是潺潺小溪，还是浩荡大河，都一去不复返，流逝之际青年变成了老翁而绿草转眼就枯黄，很自然有错阴的紧迫感。流逝也许是缓慢的，但无论如何缓慢，对流逝的恐惧使人们必须用“流逝”这个词来时时警戒后人，必须急匆匆地行动，给这个词灌注一种紧张感。

They found that whatever the littering rivers and tottering long channels, are all leaving without backing. Leaving time, the adolescent changed to the elderly and the green grass turns to withered yellow and has the toughest feeling of passing time. Leaving may just slow but whatever slow itself, the scary of the passing time makes people must using “passing by” word to alert people in all time. Approaching forward swiftly is pouring some tough senses of this word.