Marx and Engels have forged in the struggle sincere and selfless friendship, so that they sincerely cooperate closely and co-authored a number of classics of scientific socialism.
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美
- 马克思与恩格斯在斗争中结下真诚而无私的友谊,使他们精诚合作,亲密无间,共同撰写了许多科学社会主义经典著作。