| 1. | For two years the capital was in constant danger .
首都不断受威胁达两年之久。 |
| 2. | This city was besieged by the enemy for two years .
这城为敌人围困达二年之久。 |
| 3. | He has been engaged 10 years on the dictionary .
他从事这本词典的编纂工作已达10年之久。 |
| 4. | A fallacious proof was accepted as correct for a decade .
一个虚假的论证曾被认为正确，为时达十年之久。 |
| 5. | The sun has been emitting energy at this rate for billions of years .
太阳以这样的强度辐射已有10亿年之久。 |
| 6. | The robbery touched off a dramatic saga of honor that lasted 31 years .
这宗抢案引起了历时三十一年之久的信义传奇。 |
| 7. | He'd been gone a year now, and his letters were coming less and less often .
现在他离家已达一年之久，信却越来越疏了。 |
| 8. | That was the thrust of everything we both had been discussing for nearly a year .
这是我们双方近乎一年之久的谈判的主旨。 |
| 9. | His "definition" of geometry guided geometrical thinking for about fifty years .
他的几何“定义”指引了几何思想约50年之久。 |
| 10. | The tube, which is called a shunt, can safely stay in place for as long as three years .
这个管子一般叫分路管，可以安全地在原处待三年之久。 |
