manter 用英语:

Diet is the key to maintaining a slim physique.

It's important to maintain family traditions.

His job is to maintain machinery and equipment.

The army has been brought in to maintain order in the region. A large house is very expensive to maintain. He has always maintained that he is innocent.

Tim wanted to maintain the good condition of his car, so he took it for a regular service.

You have to eat regularly if you want to maintain weight.

to maintain prices

Several of the teachers were quite unable to maintain discipline.

The army has been brought in to maintain order in the region.

It's not easy to maintain the same rhythm for hours.

it is important to maintain eye contact

It is vital for us to maintain regular customers.

We have to maintain our lifestyle.

to maintain core activities

Britain wants to maintain its position as a world power.