接收地球的蹤跡
Aaron and Emily are friends. They are watching the stars.
亞倫和艾蜜莉是朋友。他們在看星星。
Aaron: Do you believe in aliens?
亞倫：你相信有外星人的存在嗎？
believe in sth.相信某事物存在
Emily: I do, and they are probably watching us as well.
艾蜜莉：我相信，而且他們可能也在監視我們。
Aaron: Really!? This creeps me out a bit.
亞倫：真的嗎！？這讓我有點毛骨悚然。
creep sb. out嚇到某人毛骨悚然
Emily: It is said that there are 29 planets with possible alien life that could receive or see the traces on Earth.
艾蜜莉：據說有29顆可能存在外星生命的行星能接收或看到地球上的蹤跡。
It is said that…據說planet(n.)行星receive(v.)接收trace(n.)蹤跡
Aaron: What kind of traces?
亞倫：什麼樣的蹤跡？
Emily: Through our radio broadcasts, for example.
艾蜜莉：例如透過我們的無線電波之類的。
through(prep.)透過broadcast(n.)廣播、無線電
Aaron: How come they didn’t contact us?
亞倫：他們怎麼不聯繫我們呢？
contact(v.)聯絡
Emily: There are many theories, but I think that they probably haven’t come up with a better way to send signals to us.
艾蜜莉：有很多理論猜測，但我認為他們可能還沒有想出一種很好的方式來向我們發送信號溝通吧。
theory(n.)理論come up with sth.想出signal(n.)信號
Aaron: So, as we are looking up into the sky right now, there might be someone waving at us?
亞倫：所以，當我們現在仰望天空時，可能有人也在向我們招手？
look up抬頭看、look up to sb.景仰wave(v.)揮手
Emily: Yeah. Very likely.
艾蜜莉：是的。非常有可能。
likely(adj., adv.)有可能的