Marriages usually break down as a result of the shortcomings of both partners.

婚姻常常因双方的缺点而破裂。

《柯林斯英汉双解大词典》

Usually you can break down the process of the clueless man in a few simple steps.

你可以从以下这些没有头绪的男性中琢磨出一些东西。

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Without such a process, the plan usually has to break down completely before anyone will take action.

没有这样的一个过程，这个计划通常需要打破有人之前，请完整地采取行动。

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While there is a lot of idealism out there, local currencies usually break down, Ely says.

CNN: Some communities are printing their own currency

Both the public and the press are usually present to witness the break-down of race horses that has led to tragic and usually fatal injuries to the horses as well as catastrophic (quadriplegia, brain injury) and fatal injuries of the jockeys.

FORBES: No American Horse Steak for You, Europeans