—你跑步追上一辆公共汽车,可是刚要跨步上车时售票员把车门关上,按铃启动,扬长而去;———你写信时忘了写对方的邮政编码,虽然你知道这个编码;———你不知道邮政编码,因而没有写,结果信被邮局退了回来;———马路上有人吵架,大家伫足观望,抱着无穷的兴趣,必欲穷其所以才肯走; - You run to catch up with a bus, but just stepped on the car when the conductor closed the door, start the bell, go away; --- You wrote the letter to write the other zip code, although you know this Encoding; --- You do not know the zip code, and therefore did not write, the results of the letter was returned from the post office; --- Some people quarrel on the road, we wait and see, with boundless interest, ;