科学家们担心，如果有一天外星人被发现，他们的语言可能会让人们理解他们。
If aliens are discovered one day, scientists fear their language may make it possible to understand them.
星期天如果阴天或下雨，白天外出的选择就不多了。
On Sunday, if the weather is cloudy, rainy or cold, the possibilities for getting out are limited during the day.
在她的书中，雅各布森暗示，1947年坠毁的并不是引发了数十年天外来客争论的外星飞船。
In her book, Jacobsen suggests it wasn't an alien spaceship that came down in 1947, sparking decades of speculation of visitors from the stars.
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