The company claims the sapphire blades will stay sharp for about a year and offer complimentary cleaning and re-sharpening for an entire decade.
该公司声称蓝宝石的刀锋能保持锋利一年左右，之后将在十年内提供免费清洗与打磨。
The company claims the sapphire blades will stay sharp for about a year and offer complimentary cleaning and re-sharpening for an entire decade.
该公司声称蓝宝石的刀锋能保持锋利一年左右，之后将在十年内提供免费清洗与打磨。
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