after that,he knew he could any emergency by doing what he c

有些相近,但有不同,仔细体会下面的注释,事实上是不能替代的.
get over
To prevail against; overcome.胜过；超越
To recover from:痊愈：
finally got over the divorce.最终从离婚的创伤中恢复了
get through
To arrive at the end of; finish or complete.结束：到达终点；结束或完成
To succeed in making contact; reach.到达：成功地和…联络；到达