Mononucleosis is an illness, the one people usually call mono. You feel washed out, your throat hurts, and the glands in your neck swell.

Mononucleosismononucleosis is an illness是一種疾病，the one people usually call mono也就是大家通常叫做mono的那個病。You feel washed out你會覺得整個人很虛，your throat hurts喉嚨痛，and the glands in your neck swell而且脖子上的腺體會腫起來。

A virus causes it, and it moves in saliva — the wetness in the mouth — which is why people joke that it is the kissing disease. Teenagers and young adults get it more than little children.

A virus causes it是一種病毒引起的，and it moves in saliva而且它會透過唾液傳染——the wetness in the mouth也就是口腔裡的水分——which is why people joke that it is the kissing disease這就是為什麼人們開玩笑說它是「接吻病」。Teenagers and young adults青少年和年輕人 get it more than little children得這個病的機率比小小孩高。

It is not usually dangerous, but getting your strength back can take weeks. Doctors named it for what they see in the blood: more of a certain white cell that has one nucleus.

It is not usually dangerous它通常不危險，but getting your strength back can take weeks不過要恢復體力可能要花上好幾個禮拜。Doctors named it醫生會這樣命名 for what they see in the blood是因為他們在血液裡看到的東西：more of a certain white cell that has one nucleus也就是某一種只有一個細胞核的白血球數量變多了。

Though actually, in everyday talk almost nobody says the long word. They say mono, and they mean this illness, not the little prefix that means “one” on words like monolingual.

Though actually不過實際上，in everyday talk在日常對話裡，almost nobody says the long word幾乎沒有人會說這個長長的字。They say mono他們會說mono，and they mean this illness指的就是這個病，not the little prefix that means 'one' on words like monolingual而不是像monolingual這種字裡面那個代表「一」的字首mono。