Pendulum
[ 'pɛndʒələm ]
第5级
其它 Other
n. 摆，钟摆;摇摆不定的事态（或局面）;
💡 词根助记
Pend悬挂+ulum东西→摆着的东西→钟摆
📝 例句
The swing is a pendulum with a single natural frequency depending on its length.
秋千是只有一个固有频率的摆，此频率决定于它的长度。
The present device is also called a conical pendulum.
上述装置也称为圆锥摆。
A grandfather clock has a pendulum that helps it work.
落地大座钟有一个帮助摆动的钟摆。
Then the pendulum boom and the pendulum are in equilibrium in any position.
则摆杆和摆在任何位置都处于平衡状态。
🌱 联想助记
【记】※ 谐音“破旧了吗”:钟摆破旧了吗
※ pen-钢笔,du-拼音“堵”,lum-拼音“路面”:钟摆和钢笔堵住了路面
※ pen-钢笔,dulum-拼音“杜鲁门”:钢笔和钟摆是送给杜鲁门总统的礼物
🔤 词根
-pend-表示“悬挂”
常见变体有-pens-
📖 牛津释义
pendulum
n
1 weight hung on a cord from a fixed point so that it can swing freely 摆; 摆锤.
2 rod with a weight at the bottom that regulates the mechanism of a clock 钟摆. =>illus 见插图.
3 (idm 习语) the swing of the pendulum => swing2.
🎯 考研助记
在下面(de)悬挂(pend)叫 依靠depend-pend悬挂 a(=to)+pend+ix-appendix 附属物 sus(=under)+pend-suspend 悬挂 暂停营业 pend+ulum-pendulum 钟摆
🏥 医学释义
摆（锤），振动体
🌿 同词根单词
📖 同为「博士」词汇
查看全部博士词汇 ›🗣️ 情景例句
Our competitor has a better product. There's no denying it.
无可否认，我们的竞争对手拥有更好的产品。
This nation is noted for its natural resources.
这个国家以天然资源闻名。
They lived by hunting and by gathering roots, nuts and wild fruits.
他们靠狩猎和采集根茎、坚果和野果为生。