There is, however, one helpful guide, namely, for a nation to keep its word and to act in accordance with its treaty obligations to Allies.

但是，有一个有助于作出评判的准则，即一个国家要遵守诺言并履行与盟国签署的条约中的义务。

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Games are usually cheap (99 cents to download one) or even free, and most guide you very gently into playing, with helpful on-screen tips and intuitive touchscreen controls.

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