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In general an aphid cannot or hardly identify its host at a distance.
在一定距离以外，蚜虫通常不能或难以识别其寄主植物。
youdao
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The aphid possess positive taxis to golden and negative taxis to silver grey.
蚜虫对金黄色具有正趋性，对银灰色具有负趋性。
youdao
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The aphid possess positive taxis to golden and negative taxis to silver grey.
蚜虫对金黄色具有正趋性，对银灰色具有负趋性。
youdao