I work out regularly to keep fit.

我经常做运动以保持健康。

My family helps to keep me centred.

家人帮助我保持冷静。

I kept telling myself to keep calm.

我不断叮嘱自己要保持冷静。

You need to work hard to keep ahead.

你要努力才能保持领先优势。

The riders had to keep their pace up.

骑手们必须保持速度不减。

They sang songs to keep their spirits up.

他们唱歌以保持高昂的情绪。

She tries to keep fit by jogging every day.

她每天慢跑以保持健康。

The company wants to keep down labour costs.

公司想保持低劳动成本。

Tiled kitchen floors are easy to keep clean.

铺了地砖的厨房地面容易保持清洁。

They embraced and promised to keep in touch.

他们互相拥抱，许诺将保持联系。

We have the initiative; we intend to keep it.

我们拥有主动权；我们想要保持主动权。

It is important to keep calm in an emergency.

情况紧急的时候，保持镇静是重要的。

These exercises will help to keep you supple.

这些锻炼项目有助于你保持身体的柔韧性。

We made a commitment to keep working together.

我们作了承诺要继续在一起工作。

Eleanor began to keep a diary.

埃莉诺开始记日记了。

I try to keep out of mischief.

我尽量不胡闹。

She managed to keep a poker face.

她设法不露出任何表情。

We huddled together to keep warm.

我们挤在一起来保暖。

She forced herself to keep going.

她强迫自己坚持下去。

He failed to keep the appointment.

他未履约。

I told her to keep quiet about it.

我叫她对此保守秘密。

I'm very sorry to keep you waiting.

对不起，让你久等了。

I'm trying to keep off fatty foods.

我尽量不吃高脂肪食物。

I just cannot afford to keep myself.

我连自己也养活不了。

He was careful to keep out of sight.

他小心翼翼地躲开别人的视线。

The important thing is to keep trying.

重要的是要不断尝试。

She dashed off to keep an appointment.

她急匆匆地赶去赴约。

She was unable to keep back her tears.

她无法忍住泪水。

I tried stamping my feet to keep warm.

我跺了一阵脚想暖和暖和。