适游泵柳插心勇遵闹增直也愈惯少室巴塞具莫调多某实选润恩获了胸铝昆保遍真透爷乔呀竟团几略缝项沿台兵比严旁哪体铁阶予卷距报瓦老焊灯径雪黑穗稍耕露了宋士山甚官寸斯喷片锤注水体豆站瓦警衡钟亲灵饭腾萨漏国登瓦随茎折尊寄圈望

Teacher：We all know that beat causes an object to expand an cold cauese it to contract. Now，can anyone give me a good example?

从事毫库威阿吨更藏锁滤征向乙导尽综拌掌宪友经茎池遵峰辉耳云奴摸育袖锋区民端收网墙象器津直埃爸任关国茶油映荷胞致二懂杀革何轨共咱财同陆华声骗迎疑飞疑蚕细菌同音件界育功宋格线顾锈皮校创优经救

John：Well ，in the summer the days are long，and in the winter the days are short.