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(单词翻译)
Gardeners and botanists1 have known for a long time that when a green plant is shaded by neighboring plants it will often react by elongating2 its stem. This so-called shade-avoidance reaction raises the plant’s leaves out of the shade, toward the light. Now three scientists at the University of Buenos Aires have found evidence that plants can sense the presence of neighbors that might cast shadows on them at some future time. The scientists transferred seedlings3 of white mustard into soil already occupied by similar seedlings of the same height. Within three days, the stems of the newly transferred seedlings began growing faster than before, even though the neighboring plants were too far away and still too short to cast shade on them.
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1
botanists
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| n.植物学家,研究植物的人( botanist的名词复数 ) | |
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2
elongating
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| v.延长,加长( elongate的现在分词 ) | |
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3
seedlings
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| n.刚出芽的幼苗( seedling的名词复数 ) | |
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