They had their differences and quarrel quite often.

他们由于种种分歧经常吵架。

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On October 6th it issued a joint statement with the foreign partners saying they had settled their differences, without amending the Investment Agreement.

ECONOMIST: A massive mining project hits a snag

But it would have been a lot better for the global economy if they had been able to resolve their differences for more than a few weeks.

BBC: Cliffhanger: Still hanging