| 单词 | reinforced plastic |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔hardhat〕A lightweight protective helmet, usually of metal or reinforced plastic, worn by workers in industrial settings.安全帽:一种工人们在工业生产环境中戴的通常用金属或加强塑料制成的轻型保护头盔美国传统 |

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