Wash a dog, comb a dog, Still a dog, remains a dog.
本性難移。
Once we detected a planet, we would have to find a way of blotting out the light from its star, so that we would be able to 'see' the planet properly and analyze its atmosphere.
一旦我們找到這樣一顆行星,我們就要想辦法將它的恒星射過來的光線遮暗,這樣我們就能徹底“看見”這顆行星,并分析它的大氣層。