1、They will revert to tilling the earth in an old-fashioned way.他们将回归到用老方法耕地。
2、When it returns to shore， the life-jacket will deflate and revert to a harness.返回岸上后，救生衣就会瘪掉，恢复成背带状。
3、Instead， it says， thanks to slowing population growth， land currently ploughed up for crops might be able to revert to forest or wilderness.相反，它认为，由于人口增速的减缓，当前被开垦的农田也许能够退耕还林。
