双语例句权威例句
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Textile dyes, such as indigo, were mostly of plant origin until the advent of synthetic chemical dyes.
在合成化学染料出现之前，诸如靛蓝之类的纺织染料主要来源于植物。
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Most of the thickeners are of plant origin.
大部分增稠剂来源于植物。
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This result indicates that the plant origin of Chinese propolis is poplar.
实验结果表明：中国蜂胶的主要植物源是杨树。
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