吸溜面条时发出声音是礼貌的，而且还表示你很享受你的食物
Slurping is considered polite in Japan because it shows that you are enjoying your delicious noodles — in fact, if you don't eat loudly enough, it can be mistaken as you not enjoying your food.
吸溜面条时发出声音是礼貌的，因为这代表你享受这碗美味的面条——事实上，如果你不大声的吃，你会让人误会你并不享受你的食物。
Slurping noodles is not entirely for the sake of politeness, but also to avoid having a burnt tongue. Japanese soup and noodles are generally served steaming hot — hot enough to burn — and slurping helps to cool down the food.
吸溜面条不但是为礼貌，而且还为了避免烫伤舌头。日本的汤面在端上来的时候是非常热的——热得足以烫伤你——而吸溜面条有助于冷却食物。
But unlike in some other Asian nations, it is still considered rude to belch at the table.
但不像其他亚洲国家，在饭桌上打嗝还是很粗鲁的。