单语范例（未经PONS编辑处理）
The flatness is the reason for its development and growth as an important artery for this and its neighboring suburbs.
en.wikipedia.org To cut a crape myrtle back for the vague reason of "it just seems too large" ignores the fact that these plants are trees.
www.nola.com These concerns are one reason for the organic food movement.
en.wikipedia.org Another reason for polyandry is that the mountainous terrain makes some of the farm land difficult to farm, requiring more physical strength.
en.wikipedia.org The rings can be isomerized to 1,3-dienes and for this reason polybenzvalene has been investigated as a precursor to polyacetylene.
en.wikipedia.org