确定对自己剃须最重要的因素。 定期更换刀片。 掌握正确的剃须技巧。 保持剃须刀的清洁。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Whether you want to save time, avoid mess, or get a close shave without irritating your skin, there are basically two types of electric shaver to use: rotary and foil. Rotary shavers utilize a revolving motion that guarantees a closer shave. This is a very popular choice because it doesn’t pull hair and provides a comfortable shave.  The three rotating mechanisms of a rotary shaver can help with hard to reach areas. Flexibility can depend on the brand so do your research to accommodate the conto