| 单词 | chemical and biological warfare |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔CBW〕Chemical and biological warfare.化学生物战美国传统A leading scientist has warned that protective suits and gas masks will not guard troops against prolonged chemical and biological warfare.一位科学权威曾警告说，防护服和防毒面具不能长时间地保护士兵免受化学和生物武器的危害。剑桥国际 |
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