| 1. | The crowds were pressing against the barriers . 人群向着栅栏推挤。
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| 2. | The cell surface barrier had been broached . 细胞表面屏障被凿开。
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| 3. | The trouble started at the ticket barrier . 在检票口出现了麻烦。
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| 4. | The crowd linked arms to form a barrier . 群众臂挽着臂组成人墙。
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| 5. | What a coil, and what a barrier ! 多大的麻烦,多大的障碍啊!
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| 6. | This would amount to a significant entry barrier . 这就成为一个重大的加入障碍。
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| 7. | Together they had shoved aside temporary barriers . 他们联合起来推开了临时路障。
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| 8. | Polyethylene is an excellent barrier to water vapor . 聚乙烯保水蒸汽的性能良好。
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| 9. | The lorry shaved the barrier , scraping its side . 那辆卡车掠过路障,刮坏了车身。
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| 10. | The existence of barriers to entry would reduce competition . 进入市场的障碍会降低竞争性。
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