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
When I first graduated from college.
那时我刚从大学毕业。
Certainly. Ask whatever you like.
当然，你什么都可以问。
But we do not need to send men down to get the oil out, as we must with other mineral deposits.
但是，我们不必像开采其他矿藏那样，把人送到地下去把石油取出。