It is the joint action that emerges when speakers and listeners—or writers and readers—perform their individual actions in coordination, as ensembles.

当演讲者和听众——或者作者和读者——以合奏的形式，协调地执行各自的行动时，这种联合行动就出现了。

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Third, strengthening coordination and taking joint actions to tackle hot spot issues.

第三，加强协调，采取应对热点问题的共同行动。

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The two countries have also had good communication and coordination on climate change, exerting joint efforts to address this major challenge for human kind.

在应对气候变化问题上，中美也进行了良好沟通与协调，为应对这一人类的重大挑战作出了共同努力。

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U.S. officials said Afghan and U.S. commandos were pursuing militants in the area the night of the attack and received clearance for the strike from a joint border coordination center run by U.S., Afghan and Pakistani officials.

WSJ: Obama Calls Pakistani Leader to Express Condolences