vitamin tablets - 维生素片, environmentally friendly devices - 环保设施, every once in a while - 每隔一段时间, 实施 - put ….into operation, 适应变化 - adapt to changes, discovery (n) _________________; _______________(vt) 发现 ________________(发现者) - discovery (n) ___发现___; _discover___(vt) 发现 discoverer_________(发现者), invention (n) _______________; ______________(vt) 发明 ______________(发明家) - invention (n) _____发明__________; ____invent__________(vt) 发明 _______inventor_______(发明家), curious (adj)____________; ________________(adv) 好奇地 _____________(n) 好奇心 - curious (adj)_好奇的__; curiously__(adv) 好奇地_curiosity_(n) 好奇心, 革新 - Innovation,

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