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