As a domain expert in gaming, particularly in the context of Pokémon battles, I can provide you with an accurate description of the move "Sketch."

In the Pokémon games, Sketch is a unique Normal-type move that was introduced in Generation II. When a Pokémon uses Sketch, it copies the last move that the opponent used. If the opponent has not used a move that can be learned by the Pokémon using Sketch, or if the opponent used a move that the Pokémon cannot learn, then Sketch will fail. Once a move is successfully copied, Sketch is replaced by that move in the user's move set and cannot be used again until the Pokémon is reset or the game is restarted.

Here's the translation in Chinese:

在宝可梦游戏中，素描是一个独特的普通类型的招式，它在第二代游戏中首次出现。当一个宝可梦使用素描时，它会复制对手最后使用的招式。如果对手使用的招式不能被使用素描的宝可梦学习，或者对手使用的是宝可梦无法学习的招式，那么素描就会失败。一旦成功复制了一个招式，素描就会被那个招式替换在使用者的招式列表中，并且直到宝可梦被重置或者游戏重新开始之前，不能再使用。

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Sketch can now be used to copy Selfdestruct and Explosion when used in a battle with a Pok��mon with the Damp Ability. It can also be used to copy Metronome and Transform, if the move fails to activate due to effects such as sleep. ... If used by a transformed Pok��mon, Sketch will fail.read more >>