imitation [ˌɪmɪˈteɪʃn]

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n.模仿；仿制，仿制品；赝品

made to look like something else

It's not real leather. It's only an imitation. 那不是真皮，只不过是仿制品。
Young children learn how to speak by imitation. 儿童通过模仿学说话。