1. [U][C]合作,协作 collaborating
2. [U]通敌 helping enemy forces occupying one's country

1. act of working jointly;

   "they worked either in collaboration or independently"
   

2. act of cooperating traitorously with an enemy that is occupying your country

1.(尤指在著书或研究方面的)合作，协作
collaboration is the act of working together to produce a piece of work, especially a book or some research.

e.g. There is substantialcollaboration with neighbouring departments...
与相邻的一些部门有大量的合作。
e.g. Closecollaboration between the Bank and the Fund is not merely desirable, it is essential.
银行与基金会的紧密合作不仅可取，而且必不可少。

2.合作(或协作)的成果
Acollaboration is a piece of work that has been produced as the result of people or groups working together.

collaboration的近义词

e.g. He was also a writer of beautiful stories, some of which are collaborations with his fiancee.
他还写了一些美妙的故事，其中有些是和他的未婚妻合著的。

3.通敌;勾结敌人
collaboration is the act of helping an enemy who is occupying your country during a war.

e.g. She faced charges ofcollaboration.
她面临通敌的指控。

1. collaboration的近义词

1. 协同合作：在CHRO调查中显示,大部分企业都认为,自己在人才的培育上做得不够好,仅有 14%的企业认为其组织回应变革的能力良好,这些组织也普遍在预测未来工作职能需求、有效地寻找人才,以及协同合作(collaboration)三方面的能力名列前茅.