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Think of this as your refactoring guide that helps you make surgical changes to your codebase.

以此作为重构的指导会帮助你在代码库方面做出明显的改进。

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With the newest kind of surgery, doctors make a small cut in the patient's belly bottom(button). A camera is placed through the hole to help *(guide) the surgical instrument.

有了这种最新的手术，医生在病人的肚脐上开一个小口。一个照相机通过这个开口放进去帮助指导手术仪器。

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