Word · Frequency #13027
cam
剑河
a river in east central England that flows past Cambridge to join the Ouse River
- 1.
A turning or sliding piece which imparts motion to a rod, lever or block brought into sliding or rolling contact with it.
- 2.
A bootleg recording of a film recorded in a movie theater.
在电影院里非法录制的电影。
- 3.
a river in east central England that flows past Cambridge to join the Ouse River
英格兰中东部的一条河流,流经剑桥后汇入乌斯河
- 4.
A spring-loaded camming device, a spring-loaded device for effecting a temporary belay in a rock crevice.
- 5.
a rotating disk shaped to convert circular into linear motion
将圆周运动转换为直线运动的旋转盘
在电影院里非法录制的电影。；英格兰中东部的一条河流,流经剑桥后汇入乌斯河；将圆周运动转换为直线运动的旋转盘；凸轮；计算机辅助制造
In use
The Cam flows gently through the city of Cambridge.
My family rented a rowboat and spent an hour on the Cam.
If you stay near the Cam, you can hear birds singing in the morning.
There is a cam in/on + noun
there be 句型用于说明某处存在某物，冠词用 a/an。
There is a cam on the shaft.
轴上有一个凸轮。
The cam + verb + object
定冠词 the 特指已知或前述的凸轮，后接动词及宾语。
The cam opens the valve.
凸轮打开阀门。
Cams + be used to + verb
复数 cams 表示类别，be used to do 意为“被用来做…”。
Cams are used to convert motion.
Connections
Collocations
- the River Cam
- 剑河
- We took a walk along the River Cam.我们沿着剑河散步。
- punt on the Cam
- 在剑河撑船
- Tourists love to punt on the Cam during summer.游客喜欢在夏天到剑河撑船。
- the banks of the Cam
- 剑河河岸
- The banks of the Cam are lined with college buildings.剑河河岸两旁学院建筑林立。
- a boat trip on the Cam
- 乘船游览剑河
- We went on a boat trip on the Cam to see the colleges.我们乘船游览剑河，欣赏各学院的风光。
- the Cam towpath
- 剑河纤道
- We cycled along the Cam towpath from Cambridge to Grantchester.我们沿着剑河纤道从剑桥骑车到格兰切斯特。
Confusing words
Learner notes
Memory Tip
cam 是 camera（相机）的开头：镜头凸起像凸轮，记住凸轮是 cam。
Context & Register
语域：neutral 常见场景：geography、travel、history 根据给出的英文释义，cam 指英格兰的剑河（River Cam），为专有名词，通常首字母大写，多用于地理、旅游或历史语境。
Pronunciation & Spelling
这些词与 cam 的重读元音 /æ/ 和尾音 /m/ 相同，都押韵：ham、jam、ram、yam、dam、lamb。注意 lamb 的 -mb 中 b 不发音。拼写像但读音不同的常见词有 came /keɪm/、calm /kɑːm/、comb /koʊm/，不要按 -am 读。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.