Odie的英语课 476 速度 Rate

471~465 复习high 和 tall 的区别She's very tall for her age. 在她这个年纪，她长得很高。The plants are two meters tall. 那些植物有两米高。the tallest building 最高楼the world's tallest building 世界最高楼frequency 频率，次数The group meets weekly. 小组每周见面。The group meets every week.The group meets once a week.The group meets monthly.小组每月见面。The group meets every month.The group meets once a month.The group meets yearly.小组每年见面。weekly meetings 周会 speed 速度，速率The car has a top speed of one hundred and fifty-five miles per hour. 这辆汽车的最高时速是155英里。He's driving at a speed of eighty kilometers per hour. 他以每小时80公里的速度行驶。at a speed of... 以……的速度* 这两个例句中，不用 per hour（每小时）用 an hour（一个小时）也可以。speed limit 车速限制，（道路的）最高时速限制pick up speed 加速The train began to pick up speed. 火车开始加速。The train picked up speed slowly. 火车慢慢加速。lower/reduce speed 减速，放慢速度You should lower/reduce your speed as you approach a junction. 接近交叉路口时你应该放慢速度。关于速度，还有一个词也常用到：raterate 率，比率；速率；速度；进度at a rate of...以……的速度The water flows in at the rate of 15 liters per minute.水以每分钟15升的速度流入。flow in 流入，流进 <—> flow out 流出去liter(s) 升请大家和我读三遍The water flows in at the rate of fifteen liters per minute.