1. Scientists estimated the snake was 15 meters long.
科学家估计这条蛇有15米长。
2. The project is estimated to take one year.
这个项目预计耗时一年。
3. He estimated the total cost.
他估计了总成本。
4. We estimated that the plan would cost a lot of money.
我们估计这个计划将花费大量资金。
5. The population of this area is estimated at 5,000 people.
这个地区的居民人数估计为5000人。