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: It's fine for home use but not convenient for travel. It broke after about a year of use. You can buy a similar replacement for around $20-30. The advantage of this one is that it has 10 adjustable water pressure settings, which is great for those who prefer a gentle water flow. For someone like me who uses it at the highest pressure, it doesn't matter much. 放家里用可以，旅行不方便，大概用了1年左右就坏了。买个20-30刀左右的平替一样使用。这个的优点是水压可以调10个档，适合喜欢敏感小水流的人，我这种水压开到最大的来说无所谓。

回复 @手机用户 : I've used mine for many years without it breaking. After each use, I shake out any remaining water to empty it as much as possible, preventing limescale build-up or sediment. You might want to try my method. 我用了好几年都没有坏过。我是每次使用后都会将里面的水甩出来，尽量排空的，防止水垢生成或沉淀。可以参考我的做法。

: It works pretty well, and it's not very noisy. 蛮好用的，不是很吵

: The cleaning power is sufficient! The sound feels like a typical electric toothbrush. Personally, I feel Philips sounds better than Oral-B. 清洁里够的！声音感觉就是一般电动牙刷的声音，个人感觉飞利浦比oral b声音好些

: Absolutely! Women need much more protein during breastfeeding than usual, and it can be hard to get enough just from food. Supplementing with collagen appropriately is beneficial for the body. 可以的啊，女生在哺乳期需要的蛋白量比平时多很多，从食物中可能不能得到有效地满足，适当补充胶原蛋白对身体是有好处的