| 1. | Winter is the fourth and last season in a year
冬季是一年中第四个也是最后一个季节。 |
| 2. | I think autumn is the most beautiful season in a year
我认为秋天是一年中最美的季节。 |
| 3. | Spring is the most beautiful season in a year
春季是一年中最美的季节。 |
| 4. | Winter is the coldest season in a year
冬季是一年中最冷的季节。 |
| 5. | Jane : there are four seasons in a year
珍：一年有四个季节。 |
| 6. | How many seasons are there in a year ? there are four seasons in a year
一年有几个季节？一年有四季。 |
| 7. | There four seasons in a year
在一年里有四个季节。 |
| 8. | There are four seasons in a year
一年有四季。 |
| 9. | There are four seasons in a year
一年有四季 |
| 10. | The collapse mainly occurs in the low - water years or during the beginning of the dry season and rain season in a year . the formation and developing scales of the collapse are affected by many factors , such as karst caves , sola and water , etc . however , the taking of the underground water which causes the hydrodynamic conditions changed and the water level highly descended is a leading factor for the karst collapse . the mechanism of karst collapse is discussed based on long - term monitoring results of groundwater level and geological environment
塌陷的产生与发展规模受溶洞、土层和水等多种因素的综合影响,但过量开采地下水导致地下水动力条件急剧改变或水位大幅度下降是造成塌陷形成的主导因素;进一步讨论了泰安市岩溶塌陷的形成机理,在此基础之上对泰安市岩溶塌陷的监测预报及对土地资源管理利用的影响进行了研究,并根据当地的防治实践,提出了岩溶塌陷防治的对策建议。 |
