黑龙江省图书馆的“龙江讲坛”经过两年多的努力形成了自己的风格，成为龙江领域的一个文化品牌。

After two years of efforts, the "longjiang Forum" of Heilongjiang Provincial Library has created its own style and become a cultural brand in the longjiang field.

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经过两年多的努力工作，对于国际贸易有了初步的认识。

After more than 2 years' hard work, I begin to know something about the industry of foreign trade.

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