今天早上,我感觉天气特别寒冷,于是一溜烟跑到小河边,好奇地想看看河里有没有结冰。我随手捡起一块瓦片往水里一扔,河里没有结冰,瓦片却在水面上跳了一下。我觉得特奇怪,瓦片怎么会无缘无故地跳起来呢?于是我又捡起一块瓦片试了试,结果瓦片没有跳,只是“咚”的一声一下子沉了下 This morning, I felt the weather was particularly cold, so I ran to the little river and curious to see if there was ice in the river. I readily picked up a piece of tile to throw in the water, the river did not freeze, the tile is on the water and jumped a bit. I feel particularly strange, why the tile will jump up for no reason? So I picked up a piece of tile tried, the results of the tile did not jump, but “boom” soon sank