On one side of the equation are the calories we consume. Onthe other side are the calories we burn — through physical activity aswell as whatever is needed just to keep the body in good working order.

方程的一端是我们消费的热量，另一端是我们燃烧的热量——通过体育活动，还有保持身体良好工作秩序所需的各种办法。

youdao

Indeed, it is important to keep fit and healthy, whilst we all aspire to improve the way we look and feel in order to make good first and lasting impressions.

事实上，为了得到一个良好的初次印象和持续印象，在保持体形和健康的同时，我们也渴望提高自己看待和感受他人的方式。

youdao

Even when in use, they require a lot of maintenance—to adjust them from child to child, to keep them in good working order and to keep them clean.

即使使用了安全带时，孩子仍需要很多的保护，例如调整儿童之间的距离；保持安全带发挥作用；并保证清洁。

youdao

The authority said it would use powers to force landlords to keep their properties in good order.

BBC: Former Eagle Mills Dundee

Due to the ongoing repairs, the village owners use a full-time stonemason and maintenance man to keep the buildings in good order.

BBC: Bourton-on-the-Water model village gets listed status

There are certain aspects to the tourism here, I would focus on golf courses, where large quantities of water are used on the coast itself to keep golf courses in good order.

BBC: NEWS | In Depth | 2003 | World Forum | Water | Global village voices: Water