| 1. | Your background is entirely implausible . 你的背景简直令人难以相信。 |
| 2. | Not much is known about his background . 关于他的背景所知不多。 |
| 3. | There is now a background of experimental date . 现在已有实验资料作依据。 |
| 4. | Little is known about the historical background 历史情况不详。 |
| 5. | He kept discreetly in the background . 他一直谨慎地躲在幕后。 |
| 6. | They scrutinized his pedigree and background . 他们详细审查了他的家系和背景。 |
| 7. | This entire two-day deal is for background . 这两天的安排完全是为了介绍背景。 |
| 8. | They were pictured against a background of flowers . 他们在画中背景有很多花。 |
| 9. | Her background was international . 她的身世经历具有国际性。 |
| 10. | She came from a privileged background . 她出身于特权阶层。 |