5587.revere(动)尊敬、崇敬
Students revere the old professer.
学生尊敬这位老教授。

5588.revision(名)修订、修改
He made some minor revisions to the report before printing it out.
在将报告打印出来之前，他做了一些小小的修改。

5589.revolve(动)公转、使旋转
The wheel is revolving about its axis.
轮子绕着轴转动。

5590.rib(名)肋骨
Stop poking me in the ribs!
别捅我肋骨呀！

5591.ribbon(名)锻带、丝带
She was wearing two blue silk ribbons in her hair.
她的头发上系着两条蓝色丝带。

5592.rid(动)出去、解除：免谈
不规则变化rid,rid
I was glad to rid of the car when I finally sold it．
把车卖掉时，我很庆幸终于脱手了。

5593.riddle(名)谜语、谜题
Stop talking in riddles; say what you mean．
不要再拐弯抹角了，有什么话你就直说。

5594.rifle(名)来福枪
His rifle has jammed.
他的来福枪发生故障了。

5595.rim(名)边、缘
He glances humorously at her from above the rim of his spectacles.
他从眼镜边缘上方幽默地扫了她一眼。

5596.riot(名)暴动
The protest march developed into a riot.
抗议游行发展成为一场暴乱。

5597.rip(名)裂口、破洞
There is a big rip in my sleeve.
我的袖子破了一大块。

5598.ripe(形)成熟的
Pick the tomatoes bafore they get too ripe.
番茄还没熟透的时候就摘下来。

5599.rise(动)上升、上涨、增加
不规则变化rosen,risen
The population of the city has risen to six miillion this year.
这个城市的人口在今年已增加到六百万。

5600.risk(名)(动)风险、危险
(名): The whole future of the company is at risk.
公司的整个前途受到威胁。
(动): You are risking your health by smoking.
你抽烟是在危害自己的健康。

5601.risky(形)危险的
同义词perilous
It is far too risky to generalize from one set of results.
仅根据一组结果进行概括是十分不可靠的。

5602.roam(动)闲逛、漫游
The sheep are allowed to roam freely on this land.
绵羊可以在这片地上自由走动。

5603.rod(名)棍子、教鞭
There ussed to be a saying "Spare the rod and spoil the child."
俗话说“孩子不打不成器。”

5604.romance(名)罗曼史、传奇小说；浪漫情调
They had a whirlwind romance.
他们之间有过一段短暂的风流韵事。

5605.romantic(形)浪漫的
She churns out romantic novels.
她写了很多浪漫小说。

5606.roof(名)屋顶
The corner of the classroom was damp where the roof had leaked．
教室漏雨的一角是湿的。

5607.rooster(名)公鸡
The rooster bristled his crest.
公鸡竖起了鸡冠。

5608.rope(名)绳子
Lately, business has been on the ropes.
最近，生意就快要完蛋了。

5609.rot(动)腐烂、腐败(名)腐朽
(动): The window frame had rotted away completely.
窗框已经完全烂掉了。
(名):The wood must not get damp as rot can quickly result.
术头不能受潮，否则很快就会烂掉。

5610.rotate(动)使旋转
同义词spin
Stay well away from the helicopter when its blades start to rotate.
直升机的螺旋桨开始转动时，尽量离远点儿。

5611.rotation(名)旋转
This switch controls the number of rotations per minute.
这个开关控制着每分钟的转数。

5612.rotten(形)腐烂的、腐败的
The fruit is starting to go rotten.
水果已经开始腐烂变质了。

5613.rough(形)粗糙的、不平的
同义词bumpy
The skin on her hands was hard and rough.
她手上的皮肤粗糙而没有弹性。

5614.roughly(副)大约、大体上
There were roughly 200 people there.
那里大约有两百人。

5615.routine(形)惯常的(名)例行公事
(形): Will you go to the routine meeting instead of me?
你代我去参加这次例行会议好吗？
(名):She found it difficult to establish a new routine after retirement.
她退休以后觉得很难建立起新的生活秩序。

5616.rub(动)摩擦
She rubbed her chin thoughlfully.
她若有所思地抚摸着下巴。

5617.rude(形)无礼的；粗糙的;野蛮的
同义词uncivil
He can be very rude in private, though in public he is usually polite.
他在大众广庭通常表现得彬彬有礼，但在私下有时会很粗鲁。

5618.rug(名)地毯
He bought a shag rug.
他买了一条粗毛毯子。

5619.rugged(形)崎岖的
The countryside around here is very rugged.
这里的乡村地势起伏很大。