一个积极学习的状态，包括良好的姿势，与良好的记忆维持力和更高效的学习能力有联系。

A positive learning state (link is external), including good posture, is linked with better memory retention and more efficient learning.

youdao

必须维持工资率以保持消费者的购买力。

Wage rates must be maintained in order to maintain the purchasing power of the consumer.

《柯林斯英汉双解大词典》

虽然安第斯高地的人民参与了这种网络，但他们主要依靠在尽可能多的生态区维持自主的生产力。

Although the peoples of the Andean highlands participated in such networks, they relied primarily on the maintenance of autonomous production forces in as many ecological zones as possible.

youdao

The great discovery that Galileo and Newton made is that you don't need a force for a body to move at constant velocity.

伽利略和牛顿的伟大发现就是,物体不需要力来维持匀速运动

耶鲁公开课 - 基础物理课程节选