| 正面 | 12966.pendulum 英 ['pendjʊləm]美 ['pɛndʒələm]     |
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| 背面 |      释义： 1. tumor => tum- "to be excited, swell" => tumultuous.n. 钟摆；摇锤；摇摆不定的事态 例句： 1. In education, the pendulum has swung back to traditional teaching methods.教育界又恢复了传统教学法。 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. pendulumpendulum: [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, suspendpendulum (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." |