retardant
US /rɪˈtɑːr.dənt/
UK /rɪˈtɑːr.dənt/

1.
阻燃剂
(a substance) that makes the progress or growth of something slower:
示例:
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Potted plants are commonly treated with (a) growth retardant so that they retain their shape.
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相关词:

阻燃剂
(a substance) that makes the progress or growth of something slower: