什么是日用之道?别忙,请拿出一根再普通不过的牙签,先考考你:为什么牙签的圆头端有两个凹槽?很少有人答对。对我们而言,这根本就不是一个问题。牙签无非是一个剔牙的小工具,会用就行了。其实不然,一件物品之所以是这样子,自有它的道理。实际上,两个小凹槽自有它的妙用。从最里端的凹槽折断之后就是一个牙签架,如同筷架一般,可以搁置牙签:同时也表明,凡是圆头端折断的牙签是已经 What is the daily use? Do not be busy, please come up with an ordinary toothpick, but first test you: Why toothpick round head has two grooves? Few people correct answer. For us, this is not a problem at all. Toothpick is nothing more than a toothpick gadget, will be used on the line. In actual fact, the reason why an item is like this, its own reason. In fact, the two small grooves have their own magical effect. After breaking from the deepest groove is a toothpick frame, as chopsticks frame in general, you can put a toothpick: It also shows that any round end broken toothpicks are already