Let's roll the log up to the fire; it can do duty for a bench.

Mr Rogers will do duty for me while I'm away next week.

下周我外出时,罗杰斯先生代我履行职务.

Finite-element method was choosed to do duty for numerical valuation means.

选择了有限单方元法作为本研究的数值评价方法.

This log will do duty for a table.

这段圆木可以用作桌子.

The ad says one must do exercise with their equipment to keep healthy.

广告说要想健康就得用他们的器材多锻炼.

How do you do exercise the muscle?

你如何锻炼身体的肌肉?

Father, mother and I go out to do exercise almost every day in our spare time.

每天空闲的时候,爸爸 、 妈妈和我都要出去做运动.

You'd better get up early to do exercise.

你最好早点起床锻炼身体.

Yesterday morning i got up and was ready to do exercise in the gym.

昨天早晨我起来了和准备好做锻炼在体操里.

If he didn't do exercise every day, he wouldn't be so strong.

如果他不每天锻炼, 他不会那样强壮的.

The children in our school often do exercise between the classes.

我们学校的孩子们经常在课间做运动.

Via the media, we are constantly bombarded with suggestions to be slim, do exercise feel fit.

通常媒体, 我们不断地被各种各样的建议所包围,诸如要保持苗条 、 要锻炼身体、还要保持好的精神状态等等.

You should do exercise combined with good rest, take medicine regularly and go for check-up regularly.

注意劳逸结合,适当参加体育锻炼, 坚持用药,定期复查.

Do exercise every day and you'll be back in condition.

每天锻炼锻炼，你很快会恢复健康的。

Students do exercises together on the playground every morning.

每天早晨,同学们在操场上会操.

The cagters on our team always go out to do exercises at daybreak.

我们球队的队员总是一天亮就出去锻炼.

They do exercises to develop their muscles.

他们锻炼身体以使肌肉发达.

You should do exercises to keep healthy.

你应该做锻炼来保持健康.

It is vital to our health to do exercises everyday.

对我们来说每天锻炼身体是必要的.

Let's go and do exercises.

大家去做操吧。

Do exercises and keep your muscles strong.

锻炼锻炼,使你的肌肉强壮起来.