The original composite needs to be restored afterwards to ensure that any subsequent drawing is not unnecessarily affected by leaving the custom composite instance there for longer than is required.

绘制完成后需要恢复原来的 composite，以确保随后的任何绘图操作不会受到由让定制的 composite 实例保留超过所需要的时间所带来的不必要影响。

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Once the work was out there, it could be copied with impunity - with no payment to the author for subsequent users' drawing on, or simply enjoying, his or her creativity.

一旦作品被投向市场，公众就可以免费使用该作品、享受作者的创造力，而不需要向作者支付费用。

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