Let's read.It's rainy.Look at the boy, a cat and a little frog.What are they doing?They are playing in the rain.Shall we join them?讓我們讀一讀。下雨了。看那個男孩,一只貓和一只小青蛙。他們在做什么?他們在雨中玩耍。我們加入他們好嗎?