pendulum

英 [ˈpen.dʒəl.əm]      美 [ˈpen.dʒəl.əm]
  • n. 钟摆;摇锤;摇摆不定的事态
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将“pendulum”分解记忆:想象一个“pen”(钢笔)悬挂在“dulum”上,如同钟摆的样子。这样,通过联想一个钢笔像钟摆一样摇摆,可以帮助记忆这个单词的含义和拼写。

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pendulum 钟摆

来自拉丁语pendulum,悬挂物,来自拉丁语pendere,悬挂,称量,支付,来自PIE*spend,*spen,拉,伸,词源同dependent,pension.

pendulum
pendulum: [17] A pendulum is etymologically simply something that ‘hangs’. It is a noun use of the neuter form of the Latin adjective pendulus ‘hanging’ (source of English pendulous [18]). This was a derivative of the verb pendēre ‘hang’, which has contributed a wide range of words to English, among them penchant [17], pendant [14], pendent [15], pending [17], and penthouse, and derived forms such as append [15], appendix [16], depend, impend [16], perpendicular [14], and suspend.
=> append, appendix, depend, impend, penchant, pendant, pendent, penthouse, perpendicular, suspend
pendulum (n.)
1660, from Modern Latin pendulum (1643), noun use of neuter of Latin adjective pendulus "hanging down," from pendere "to hang" (see pendant). The Modern Latin word is perhaps a Latinization of Italian pendolo.
1. In education, the pendulum has swung back to traditional teaching methods.
教育界又恢复了传统教学法。
2. The ball which hung the roof is compound pendulum.
悬挂在墙上的钟来回摆动.
3. Finally, GMTI performance of two typical systems, Cartwheel and Pendulum, is analyzed through computer simulation.
最后, 对CartWheel和Pendulum两种典型系统构形进行了GMTI性能仿真分析.
4. The pendulum has swung back and the American car companies have made dramatic advances in safety.
三十年河东,三十年河西,美国汽车公司在安全方面已经取得了巨大进步。
5. The familiar pendulum swing was to happen once more, and then stop.
常见的钟摆来回现象,会再次发生, 然后就停止不动了.