又的东西就是物超所值的，这把切菜刀就是证明。

There are just some things where quality trumps price... and this is one of them for us!

比如，看到视频中的一个人用切菜刀切到了自己的手指会激活痛觉感知相关的脑区。

For example, watching a video of someone about to cut her finger with a kitchen knife triggers brain areas involved in pain perception.