人教版（2019）选择性必修第一册Unit2LookingintotheFuture知识点素材

选择性必修第一册Unit2LookingintotheFuturei.阅读单词（每小题i分，共10分）knobn.旋钮；球形把手appliancen.电器；器具airconditioner空调机；空调设备sensor

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