/rɪˈvɜ:t ||; rɪˈvɝt/verb [I]
revert (to sth) to return to a former state or activity 恢复（原来的状态或活动）:
The land will soon revert to jungle if it is not farmed. 那块土地如果不用来耕种，很快会回复丛林的原貌。If the experiment is unsuccessful we will revert to the old system. 如果这项试验不成功，我们会重新使用原来的系统。