汉译英：流逝，表现了南国人对时间最早的感觉。“子在川上曰，逝者如斯夫。”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。

You’dbettersing.Itdoesn’t______whetheryoucansingwellornot.

Physics is the present day equivalent of ____ used to be called natural philosophy, from ____ most of present day science arose.

Due to the bad weather the plane was ____ for two hours.

Poll is an example of a severely disabled person who has become______at many survival skills.