While you may not know those exact numbers, most of us realize that a steaming drink or bubbling nacho tray could prompt injury, which is why we instinctively blow on it.

虽然你可能不知道这些确切的数字，但我们大多数人都意识到热气腾腾的饮料或冒泡的玉米片托盘会导致受伤，这就是为什么我们本能地吹它。