求翻译：我有一个非常不寻常的经历在周日.大约在上午10点,我正在街上走,一架UFO着陆在我的前面.你可以想象这是多么的奇怪!一个外星人走出来,然后沿着中心街走.我跟着它想看看它要去哪,我很惊奇当它走进一个礼品店.当它正在看礼品的时候,店里的售货员给警察打电话.在警察到之前,那个外星人已经离开商店去参观航天博物馆了.当那个外星人在博物馆的时候,我给电视台打了电话.那太令人惊奇了!是什么意思？

I has a very not unusual of experience in Sunday. about in at 10 o'clock in the morning, I is Street go, a frame UFO landing in I of front. you can imagine this is how of strange! a aliens out to, then along Center Street go. I followed it wanted to see it to to which, I is surprised dang it went into a gift shop. dang it is see gift of when, shop in of salesman to police call. in police to zhiqian, that aliens has left shop to visit Aerospace Museum has. Dang that aliens in Museum of when, I to television playing has phone. that too was surprised has!