| 单词 | pendulum |
| 释义 | Word Frequency pendulum(ˈpɛndjʊləm) noun 1. a body mounted so that it can swing freely under the influence of gravity. It is either a bob hung on a light thread (simple pendulum) or a more complex structure (compound pendulum) 2. such a device used to regulate a clockwork mechanism 3. something that changes its position, attitude, etc fairly regularly the pendulum of public opinion Word origin C17: from Latin pendulus pendulous |
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