couples exercise meaning in English

双人练习
双人体操

Ok . so , what we could do today is a couple exercises to help you
好，所以，今天我们来作些练习
A coupled exercise algorithm of forward neural network combined with gradient search and chaotic optimization search
基于规则的前馈神经网络的混沌梯度下降耦合学习算法
A coupled exercise algorithm of forward neural network combined with gradient search and chaotic optimization search b ased on rules and its application
前馈网络的混沌梯度搜索耦合学习算法及应用