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A：Come on, you are left behind!加油啊，你落后了!

B：Wow, I can't catch my breath. You are running too fast, honey.哇哦，我快喘不過氣了。 你跑得太快了，親愛的。

A：You just need more exercise.你得多運動了。

B：Yes, but you need to slow down. This is jogging, not racing!是啊，但是你也得跑慢點 啊。這是慢跑，不是賽跑!

A：I don't care. I want to burn up my fat.我不管，我要減掉我的脂肪。

B：But running so fast is not good for people over forties.但跑這么快不適合過40的 人啊!

A：Why?為什么?

B：We are not as athletic as we were when young. Mild exercise is more suitable for us.我們沒有像年輕時候那樣 有活力了。中等強度的運動更適合我們。

A：But I want to burn up more calories!但我想燃燒掉更多的卡路里!

B：In fact, in order to burn up your fat, you must take it slowly for a longer time.事實上，要減肥，你就得 慢慢地跑很長一段時間。

A：Really? I will slow down then.真的嗎?那我就慢點跑。