| 词汇 | polypropylene |
| 释义 | poly·pro·pyl·eneBrE /ˌpɒliˈprəʊpəliːn/ NAmE /ˌpɑːliˈproʊpəliːn/ noun [U ]a strong plastic often used for objects such as toys or chairs that are made in a mould聚丙烯 |
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