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1·Different countries adopt protective tariffs for different purposes.

不同国家实行保护关税的目的不同。

2·British industry was sheltered from foreign competition by protective tariffs.

保护性关税使英国工业免受国际竞争影响。

3·Therefore, it is difficult to distinguish between revenue and protective tariffs form economic evidence alone.

因此，但就经济效益而言，很难区分财政关税和保护关税。

4·Therefore, it is difficult to distinguish between revenue and protective tariffs from economic evidence alone.

因此，很难只从经济迹象来区分财政性关税和保护性关税。

5·The Kremlin has said that protective tariffs are necessary to allow Russian companies to survive the recession.

克里姆林宫已经表示，保护性关税是保证俄罗斯公司渡过衰退难关的必要举措。