1.The required amount was to increase over time.
over time 随着时间的过去;超时
I think I only began to grasp its significance over time, gradually.
我想我只是随着时间的推移才逐步理解这意义的 。
Over time, the technology is diffused and adopted by other countries.
久而久之,这项技术传播到了其他国家并得到利用 。