However, if the planet is in a good position, astronomers look for three key things: water, air and rock.
然而如果这颗行星处于很好的位置，天文学家会寻找三样关键的东西：水、空气和岩石。
2
They can even add key words of interest, such as "water", "violence" or "UN".
他们甚至可以添加感兴趣的关键字，比如“水”、“暴力”或者“联合国”。
3
Two women were vacationing in Longboat Key while they were floating on the rubber boat along the shore, a water scooter crashed into them and kill them.