The interface has a single one-way method called event_emission with a single parameter with a type of connector.

此接口只有一个单向方法，名为 event_emission，此方法只有一个参数，其类型为connector。

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Tax planning can direct to all tax categories, but because the different nature of tax categories, the way, method and income of tax planning are different.

纳税筹划可针对一切税种，但由于不同税种的性质不同，纳税筹划的途径、方法及其收益也不同。

youdao

Tax planning can direct to all tax categories, but because the different nature of tax categories, the way, method and income of tax planning are different.

纳税筹划可针对一切税种，但由于不同税种的性质不同，纳税筹划的途径、方法及其收益也不同。

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