| 释义 |
pen.dul.umH5pen7djJ7lEm, $-dVE7lEmn [C]a device consisting of a weight on a stick or thread which moves from one side to the other, esp. one which forms a part of some types of clocks, or (fig.) a change esp. from one opinion to an opposite one摆，钟摆;摇摆不定The pendulum in the grandfather clock swung back and forth.那座老钟里钟摆在前后地摆动。He made pendulums of string and small weights and established the relationship between length of string and time of swing.他用细绳和小重物制成了摆，建立线长和摆时之间的关系。The spaceship's jets were fired periodically to dampen a side-to-side pendulum motion that had developed.宇宙飞船的喷气发动机定期喷射以减小飞船产生的左右摇摆。(fig.) As so often in education, the pendulum has swung back to the other extreme and testing is popular again.犹如教育中多次出现摆回另一个极端的现象，考试又流行起来。(fig.) The pendulum of society's concern will swing again toward caring.社会关注的趋向将再次摆向关心在意。 Clocks and watches
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