In all of these examples, two states or things are being compared: the view before and now; exercise and diet; two sisters.

这些所以例句中，两种状态或者说食物被进行了比较：之前和view、锻炼和饮食以及两姊妹。

Have you embarked on a new exercise regimen?

你最近是开始了新锻炼课程吗？

I don't get enough exercise.I have no time for loafing.

我没有足够锻炼。我没空游手好闲。

Overeating and no exercise are the direct cause of her becoming corpulent.

过度饮食和不锻炼是她变胖直接原因。

Those forced to exercise their smiling muscles reacted more enthusiastically to funny cartoons than did those whose mouths were contracted in a frown, suggesting that expressions may influence emotions rather than just the other way around.

那些被迫锻炼微笑肌肉人比那些嘴巴收缩成皱纹人对有趣动画片反更热烈，这表明表情可影响情绪，而不是相反。

Not everyone works out just to bulk up, of course.

当然不是每个人锻炼就为了强化体格。

You cannot believe it. Now. he's careful about what he eats and takes regular exercise.

难以置信吧。他很注意自己饮食，而且会定期锻炼身体。

To eat right, to exercise, to try to be strong both mentally and physically as you can be when you get to be an elderly person yourself.

健康饮食，适当锻炼，当你自己上了年纪时候，试着精神和身体上都尽可强壮。

After the workout, the app's artificial intelligence software system uses feedback from Ms. Wayner and its other 53 million users around the world to adjust future training sessions.

锻炼后，程序人工智软件系统会根据韦纳女士和全球其他 5300 万户反馈来调整未来训练课程。

It could be other aspects of lifestyle, stress, exercise, hygiene.

又或者与生活方式其它方面、压力、锻炼和卫生也有关。

They become preoccupied with calorie counting and exercising.

她们沉迷于计算卡路里和锻炼。

He challenged me mentally, not just physically.

他不仅锻炼我身体，也锻炼我意志。

They advanced rapidly and noiselessly, with the confidence and dexterity of practised scouts.

他们迅速无声地悄悄前进，显出久经锻炼斥候那种沉着和矫捷动作。

This kind of exercise is known as interval training.

这种锻炼方式被称为间歇训练。

But these workouts were not as fun.

但这些锻炼没那么有趣。

Well, to find out, scientists had subjects exercise on a fitness machine under two conditions.

科学家为找到原因，让志愿者分别两种情况下健身器材锻炼。

Oh, I see you earned that hot chocolate.

看来那杯热巧克力是锻炼后奖赏啦。

He had workout regime he did every day.

并且每天都坚持自己一套锻炼方法。

The Exercise Ring captures the brisk activity that you've done.

“锻炼圆环”记录你做过快速运动。

Astronauts on the space station already perform specific exercises to keep their weight-bearing muscles toned.

为了不让肌肉松弛，太空站上宇航员已经开始一些具体锻炼。