我们成为学习合作伙伴后，成绩都提高了。

Since we became study ___partners, both of our grades have improved.

他们结婚10年了，仍然是彼此最好的伴侣。

They've been married for 10 years and are still each other's best ___partners.

我和我的搭档在桥牌比赛中配合得很好。

My ___partner and I worked well together in the bridge game.