短语讲解：
1. There is compelling new evidence that a little bit of belly fat can be extremely hazardous to your health if you’ve had a heart attack.
a little bit of 一点儿
例句：Can I have a little bit of chocolate?
能给我点儿巧克力吗？
heart attack 心脏病发作
例句：He died of a heart attack.
他死于心脏病发作。
2. The study’s findings compare the increased risk of death to smoking a pack of cigarettes per day or having very high cholesterol.
compare to与…相比
例句：The writer was compared to Shakespear
