| 1. | We walked up the river valley, then climbed the mountains to look at the extraordinary forest that surrounds lake baikal .
我们沿着河谷自上走去，然后登山观赏贝加尔湖周围迷人的森林。 |
| 2. | They have been demonstrating since thursday
他们自上星期四以来一直在进行抗议。 |
| 3. | He has been here since last wednesday
自上星期三以来他一直呆在这里。 |
| 4. | You will see many changes on the website since last month
你会看见自上个月以来网站发生的变化。 |
| 5. | Baby - boomers have been changing the world since the 1960s
这些人自上个世纪60年代曾经改变了世界。 |
| 6. | Population in the region has nearly tripled since the 1950s
自上世纪50年代以来，黄河流域的人口总数已增加三倍。 |
| 7. | Of children ' s books , music and toys have tripled since last month
.自上个月儿童读物音乐和玩具的销量增加了三倍 |
| 8. | Only pages that have changed since the last level - 0 - backup will be backed up
只备份自上一次0级备份后发生更改的页面 |
| 9. | . . of children ' s books , music and toys have tripled since last month
. . .自上个月儿童读物、音乐和玩具的销量增加了三倍 |
| 10. | Only pages that have changed since the last level - 1 - backup will be backed up
只备份自上一次0级备份后发生更改的页面。 |
