The long war of attrition exhausted the strength of both countries.

这场长期的消耗战耗尽了两国的力量。

《新英汉大辞典》

This will be a long war.

这将是个持久战。

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For many parents , raising a teenager is like fighting a long war , but years go by without any clear winner .

对很多父母来说，培养青少年就像打一场持久战。

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For many parents , raising a teenager is like fighting a long war , but years go by without any clear winner .

对很多父母来说，培养青少年就像打一场持久战。

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