collaborate
/kəˈlæbəreɪt/verb
no obj.
1- work jointly on an activity, especially to produce or create something（尤指在创造性劳动方面）合作; 协作：
he collaborated with a distinguished painter on the designs.
他和一位著名的画家合作设计了这些图样。
1.1
- cooperate traitorously with an enemy勾结; 通敌：
during the last war they collaborated with the Nazis.
他们在上次战争中和纳粹勾结。
派生词
collaborator
noun词源
late 19th cent.: from Latin collaborat- 'worked with', from the verb collaborare, from col- 'together' + laborare 'to work'.