change-over

Our way of life has changed dramatically over the last ten years.

在过去10年里我们的生活生了巨大的变化。

Change these two pictures over.

这两张画对换。

In 1971 Britain changed over from pounds, shillings, and pence to the new decimal money system.

七年英国英镑、先令、便士改为新的十进位币制。

You can change it only over time, as you save or dissave, or as the value of your assets change.

你只能随着时间的推移才能做到这点，比如进行储蓄或者动用储蓄，以及资产的价值改变。