研究表明，美国五针松和火炬松在边缘土地上长势很好。

Studies have shown that the white pine and loblolly pine are two kinds of trees that grow well on marginal land.

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研究表明，美国五针松和火炬松在边缘土地上长势很好。

Studies have shown that the white pine and loblolly pine are two kinds of trees that grow well on marginal land.

youdao