"He was my only son," said Ma Xiangqian's father, Ma Zishan, a struggling farmer of landscape plants and trees grown for use in the bustling cities.

“他是我唯一的儿子，”马向前的父亲马子善说，他是一个给大城市种植园林树木的农民。

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Elsewhere, trees grown for paper could be made amenable to much more efficient processing, reducing both energy usage and toxic chemical bleach in effluents from paper mills.

在其他一些领域，被用来造纸的树木可以被改得更加容易处理，这样一来就会减少能量消耗和造纸厂化学漂白物的排放。

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Cacao trees grown on farms are much more easily threatened by disease and insects than wild trees are.

VOA: special.2010.02.17

At one time, poplar trees must have grown on Poplar Island.

VOA: special.2009.10.06

The trees were grown for four years at two sites in France and England, in order to see how they fitted in with the local environment.

ECONOMIST: GM trees are on their way

The Quebec group is now waiting to see if the fully grown trees will be equally protected.

ECONOMIST: Trees are the next target of genetic engineers

The hole, which has swallowed 100-foot-tall cypress trees, has since grown another 10 to 20 feet.

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