cooperator

基本解釋

So long as you think of yourself alone, you cannot be a good cooperator.
如果總想著自己，你就不能成為一名好社員。
The foreign cooperator shall send a certain number of teachers from its own educational institution to teach in the Chinese-foreign cooperatively-run school.
外方合作辦學(xué)者應(yīng)當(dāng)從本教育機(jī)構(gòu)中選派一定數(shù)量的教師到中外合作辦學(xué)機(jī)構(gòu)任教。
Article 10 A Chinese or foreign cooperator in running a school may contribute with funds, in kind or in forms of land-use right, intellectual property rights or other assets to establish the school.
第十條中外合作辦學(xué)者可以用資金、實物、土地使用權(quán)、知識產(chǎn)權(quán)以及其他財產(chǎn)作為辦學(xué)投入。

Then there is the relationship between the cooperator and the person against whom they testify.
FORBES: Why do people have a negative view of cooperators?
The life of a government cooperator is not an easy one but it does have benefits when it comes to reducing prison time.
FORBES: Connect
In addition, you have the personal circumstance of the cooperator.
FORBES: Why do people have a negative view of cooperators?