例句：

　　The diet is based on counting calories.

　　這個飲食安排以熱量統(tǒng)計為根據(jù)。

　　Diet and exercise are equally important.

　　飲食和鍛煉同樣重要。

　　It's never too late to improve your diet.

　　改善飲食什么時候都不嫌晚。

　　Diet and exercise are obviously important.

　　顯然，飲食和運動是重要的。