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“工欲善其事，必先利其器”，出自《论语》，意思是工匠想要很好地完成工作，必须先把工具弄得锋利好用。比喻要做好一件事，准备工作是很重要的（In order to do something well, one needs to make preparations）。可以翻译为“a workman must first sharpen his tools if he is to do his work well”。
例句：
工欲善其事，必先利其器。如果你想早点完成这份工作，你应该买一台新的打印机了。
A workman must first sharpen his tools if he is to do his work well. If you want to finish the work earlier, you should buy a new printer.
