例句與造句

1. These are the meteors that we see from time to time . meteors often appear as sporadic lonely streaks that traverse somewhat random paths in the sky . this sporadic activity , which persists throughout the year , can account for about 10 visible meteors every hour on a clear night
   流星的出現(xiàn)通常是單個(gè)而零星的，出現(xiàn)的時(shí)間及方向亦沒(méi)有規(guī)律，這樣的流星稱為偶發(fā)流星，在天氣良好的情況下，每小時(shí)大約可看到1 0顆偶發(fā)流星。
2. It's difficult to find random path in a sentence. 用random path造句挺難的