| 1. | The baby doubled its weight in a year .
婴儿的体重一年增加了一倍。 |
| 2. | Gas prices would double in 1979 .
汽油价格在1979年要上涨一倍。 |
| 3. | The output is double that of last year .
产量比去年增加一倍。 |
| 4. | His money doubled in three years .
他的钱三年增加了一倍。 |
| 5. | I'll double the guards on it from now on, i guess .
我想以后还要把卫兵增加一倍。 |
| 6. | Their fortune doubles ours .
他们的财产比我们的多一倍。 |
| 7. | Little celia is worth two of her .
小西莉亚比她好一倍。 |
| 8. | This numeral means a onefold increase in production .
这个数字意味着产量提高了一倍。 |
| 9. | The world's population has doubled during the last four decades .
过去40年中世界人口增加了一倍。 |
| 10. | The resistance is halved if the cross-sectional area is doubled .
如果截面积增加一倍，则电阻减少一半。 |
