周末,我和妈妈去外婆家作客。记得上次坐爸爸的汽车去的时候,速度非常快,眨眼就到了。可是今天坐妈妈的电动自行车,感觉速度特别慢。我好奇地问妈妈:“妈妈,您骑的电动车的速度是多少呀?为什么我觉得外婆家变远了?”妈 Weekends, my mom and grandmother guests. I remember the last time my father’s car to go, the speed is very fast, blink of an eye arrived. But today to sit mother’s electric bike, feeling particularly slow. I am curious to ask her mother: “Mom, how much is the speed of your electric car riding? Why do I think my grandmother has changed?”