要旗帜鲜明地反对形形色色的保护主义，坚决倡导和支持自由贸易；
We need to take a firm position against all forms of protectionism and strongly advocate and support free trade.
研究表明了保护主义和自由贸易的影响各自会是怎样的。
Studies show what the impact of protectionism and of free trade can be.
研究表明了保护主义和自由贸易的影响各自会是怎样的。
Studies show what the impact of protectionism and of free trade can be.
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