当我的孩子拒绝配合时，给他穿睡衣成了一场战斗。

It was a struggle to get my toddler into his pyjamas when he refused to ___cooperate.

学会与同学合作是儿童教育至关重要的一部分。

Learning to ___cooperate with classmates is a vital part of a child's education.

如果我们都通力合作，这个项目会完成得快得多。

The project will be completed much faster if we all ___cooperate.