"spend" 是及物动词,需要接一个宾语,表示花费时间的话,后面要加介词 "on" 或 "in"。
比如可以说:
- We spent 14 years building the bridge.
- They spent a lot of time on/in the project.
所以可以把句子改成:
- It was spent 14 years building the bridge.(这个句子语法不太正确)
- The construction of the bridge was spent 14 years. |