求翻译：例子1：关于他室友对于dust老是watering eyes, couldn’t stop sneezing打喷嚏，流鼻涕，说是灰尘过敏，其实是因为一种浮游在空气中的东西，室友身体不认识这个，免疫系统就启动了。是什么意思？

Example 1: For the dust on his roommate always watering eyes, couldn't stop sneezing sneezing, runny nose, said to be allergic to dust, in fact, because of a float in the air thing, roommate body does not know this, the immune system is started.

Example 1: On his roommate for dust ' always watering eyes, couldn t stop sneezing, runny nose, sneezing is dust allergies, and in fact this is because a floating in the air, something roommates body do not know this, the immune system activated.

Example 1: About his roommate regarding dust always watering eyes, couldn' t stop sneezing sneezes, flows the nasal mucus, said is the dust allergy, actually is because one kind of float in the air thing, the roommate body did not know this, the immune system started.

Example 1: dust kept watering eyes on his roommate, couldn ' t stop sneezing sneezing, runny nose, said to be allergic to dust, it is because something floating in the air, roommate body does not recognize this, the immune system starts.

Example 1: , to dust always watering eyes, couldn't stop sneezing sneezes, has a running nose, says a dust is allergic about his room-mate, in fact because a kind of thing swimming in the air, room-mate's body does not realize this, the immune system starts.