roar v.吼，轰鸣
The wind roared at the windows.狂风在窗外咆哮。
rosat vt.烤，烘
Chocolate is prepared by a complex process of cleaning，blending，and roasting cocoa beans, which must be ground and mixed with sugar.巧克力制作是一个非常复杂的过程，其中包括清洗、混合和烘焙可可豆， 而且可可豆必须经过研磨，并与搪混合。
role n.角色；任务
She played the leading role in the school play.她在校园剧里饰演主角。
roll v.滚动 n.(一）卷，卷形物
The ball rolled away.球滚走了。
The huge dog had rolls of fat along its neck.那只大狗的脖子上有一圈圈的肥肉。
romantic adj.传奇式的；浪漫的
The old couple reminisced about the days of their courtship, when they were young and romantic. 这对老夫妇回忆起他们恋爱的日子，那时候的 他们既年轻又浪漫。
rotate v.①轮流②(使)旋转
The officials will rotates as chairman.官员们将轮流担任主席。
Wheels rotate the wagon is proceeding.四轮马车向前驶去，车轮不断转动。
rotten adj.腐烂的，恶臭的
Rotten eggs smell justterrible.臭鸡蛋闻起来太糟糕了。
rough adj.粗糙的；不平的
My feet ached when I walked on the rough road.在崎岖不平的路上走时我的脚会疼。
rouse v.①唤醒②激起
I was roused by the ring of the telephone.我被电话铃声吵醒了。
She was roused to anger by the insult.她被那种侮辱激怒了。
routine n.常规，惯例 adj.常规的，日常的
Getting up and going to bed are part of everyone’s dailyroutine.起床和睡觉是每个人日常生活中的两个部分。
The workers did their routine tasks in silence.人们安静地做着自己的日常工作。