降雨的原理
Claire and Ken are friends. They are sitting at a cafe.
克萊兒和肯是朋友，他們正坐在咖啡店裡。
Ken: It’s cold and raining again. The weather in Taipei in spring is so strange.
肯：天氣冷然後又下雨了。台北春天的天氣真奇怪。
weather(n.)天氣（短期間）sunny(adj.)有陽光的windy(adj.)有風的cloudy(adj.)多雲的snowy(adj.)下雪的thunderstorm(n.)雷雨storm(n.)暴風雨
Claire: Yes, it is! I don’t even know how to dress.
克萊兒：是啊！我都不知道該怎麼穿衣服。
dress(v.)穿著dress up盛裝打扮dress in穿～even(adv.)甚至not…even就連～都不
Ken: By the way, do you know why it rains?
肯：對了，你知道為什麼會下雨嗎？
Claire: Of course! When water turns into vapor from rivers, lakes and oceans and goes up into the air, it forms clouds. Then, when those clouds become too full, the water falls back down as rain.
克萊兒：當然知道！來自河流、湖泊和海洋的水變成水蒸氣上升到空中時，就會形成雲朵。然後，當那些雲朵充滿水時，水就會以雨的形式落下來。
vapor(n.)水蒸氣cloud(n.)雲、雲朵become(v.)變成full(adj.)裝滿的、充滿的be full of充滿～fall down降下來、掉下來
Ken: Oh, I see. But why doesn’t it rain all the time?
肯：哦，我明白了。但為什麼不是一直在下雨呢？
all the time不停、一直for all time永遠
Claire: Well, rain happens when the air cools down and can’t hold onto all the water in the clouds anymore. So, the water falls as rain.
克萊兒：嗯，當空氣冷卻，再也無法保持雲層中的水分時，就會下雨。於是，水就變成了雨。
cool down冷卻、降溫cool sb. down使～冷靜=cool sb. offnot...anymore不再～、再也不
Ken: Ah, got it! Thanks for explaining, Claire!
肯：啊，搞懂了！謝謝你的解釋，克萊兒！
thank sb. for sth.因～而感謝某人explain(v.)解釋
Claire: You’re welcome, Ken. I’m always happy to help you learn about the world around us.
克萊兒：不客氣，肯。我很樂意幫助你了解我們周圍的世界。