col·lab·o·rate

[Date: 1800-1900; Language: Late Latin; Origin: , past participle of collaborare, from Latin com- ( COM-) + laborare 'to work']

co-
in Latin, the form of com- "together, with" in compounds with stems beginning in vowels, h-, and gn-; see com-. Taken in English from 17c. as a living prefix meaning "together, mutually, in common," and used promiscuously [involving a wide range of different things] with native words (co-worker) and Latin-derived words not beginning with vowels (codependent), including some already having it (co-conspirator).

labor, laboratory, 懒不

collaborate
1. 合作; 协作
2. 通敌(与敌人合作)

During World War II, several Dutch citizens collaborated with the German occupation [占领军]: some joined the National Socialist Movement (NSB), others betrayed Jews or were romantically involved with German soldiers. After the War was over, hundreds of thousands of Dutch citizens were prosecuted for collaboration or treason. If convicted, they could receive a prison sentence and have some of their rights, such as the right to vote, revoked. If they worked for the government, they would also be fired. Large 'cleansing' operations rid the government of German sympathizers.

Finding collaborators in World War II (dutchgenealogy.nl)

Collaboration and Resistance in World War II – Brewminate: A Bold Blend of News and Ideas

occupation
1. 居住; 占据
2. 居住期; 占据期; 占有期; 占领期
3. 工作; 职业——占据时间和精力

六级/考研单词: compound, stem, mutual, indigenous, collaborate, nationwide, socialism, betray, prosecute, convict, jail, cleanse, sympathy, bold, blend