| 1. | You are exploring the frontiers in science . 你在探究科学的新领域。 |
| 2. | Frontier life could be lonely and empty . 边疆生活不用说是空虚寂寞的。 |
| 3. | The atlantic shore was the original frontier . 大西洋沿岸是最早的边境。 |
| 4. | Our car was turned back at the frontier . 我们的汽车在边境处被勒令折返。 |
| 5. | A great deal of frontier humour was oral . 边疆幽默有一大部分是由口头传述的。 |
| 6. | Passport must be shown at the frontier . 出示护照方可入境。 |
| 7. | But i had given no pledges about frontiers . 但是我对边界问题,没有许下任何诺言。 |
| 8. | The life of the reindeer men was a frontier life . 驯鹿时代人的生活是一种边区生活。 |
| 9. | The art troupe is always on the move in frontier guards . 文工团常年在边防部队流动。 |
| 10. | This proved a very vague and shadowy frontier . 其实这是一条极其含糊、极不明确的界限。 |