meaning, n.意义;含义, design, v.设计;计划n.设计;花纹, relationship, n.关系;联系, energetic, adj.精力充沛的;充满活力的, prediction, n.预测;预言, outer, adj.外围的;外表的, researcher, n.研究者;探索者, research, n.&v.研究;调查, disappear, v.消失;不见, challenging, adj.挑战性的

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