音标：[baɪəʊdɪɡ'reɪdɪŋ] ；

v. 生物递降分解( biodegrade的现在分词 )

v break down naturally through the action of biological agents

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Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

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科技之光

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Disabled doll

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Actinidia Lindl.

acute occlusion of artery

adder and substracter circuit

adjoint technique

aerial algae

agitating cooker

alloy pin porcelain tooth

American green toad

apertura thoracis inferior

assanes

autogenous growth of concrete