There has to be a degree of co-operation between IT and human-resources departments.信息技术部和人力资源部之间要有一定程度的合作。

A deal with Japan could indeed open the door to economic co-operation with East Asia.与日本达成交易确实可能打开与东亚各国进行经济合作的大门。

The police underlined the importance of the public's co-operation in the hunt for the bombers.警方强调了公众配合搜捕炸弹投掷者的重要性。

Thank you for your co-operation.谢谢您的合作。