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(A) an unlikely fact
(B) a rare instance
(C) common knowledge
(D) mixed feeling

(A) an unlikely fact  一個不太可能的事實
(B) a rare instance  稀少案例
(C) common knowledge  常識
(D) mixed feeling  混合感

If you spend most of your days sitting at school, work, at a computer or stretched out on a couch at home, you may be taking up to two years off your life.

如果你花費大部分的時間在學校坐著，在電腦前工作，或是在家躺著沙發或床，你可能會因此壽命少了兩年。 take up 從事 、占用

(A) unlikely(adj.)不太可能發生的

例句:It's pretty unlikely (that) they'll turn up now - it's nearly ten o'clock.

(B) a rare instance 罕見/稀少的情況

(C) common knowledge 常識;眾所皆知

例句:It's common knowledge( that) they live together.

(D) mixed feeling 互相矛盾的情感;喜憂參半

例句:I had mixed feelings about leaving home. I was excited but at the same time, I knew I would miss my family.

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It is  41  that a sedentary坐著不動 、缺乏運動lifestyle increases the risk of heart disease, Type 2 Diabetes糖尿病, cancer and obesity肥胖症, and can result in early death.