Each occurrence handles one modification to the document.

每次出现处理文档的一个修改。

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This means that two entries are created for each occurrence of the optional assertion.

这意味对于每个可选断言将产生2个条目。

youdao

This causes the stage to produce an output record for each occurrence of the Symbol element.

这导致每次出现Symbol元素时该阶段都生成一个输出记录。

youdao

Each occurrence has to be treated on it's own merits.

BBC: Warning over driving fines plan

This rule applied for every first-time occurrence of each new mistake you made.

FORBES: Good Employees Make Mistakes. Great Leaders Allow Them To.

So were breaking nuts open with a hammer (which could be done in four different ways, each with its own pattern of occurrence among the sites), and picking marrow out of the bones of hunted animals using a tool.

ECONOMIST: Chimpanzee behaviour: Culture club | The