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Finally, the Internet is quick and efficient source of purchasing beads.
最后，网络是一种快捷、高效的购买珠宝的方式。
youdao
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Hydrogen is a kind of high efficient, clean energy source.
氢能是一种新型高效洁净能源。
youdao
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Hydrogen is a kind of high efficient, clean energy source.
氢能是一种新型高效洁净能源。
youdao