1. His regret should complete by the successor. 他的遗憾应该由后来人完成。
2. A feasible successor is a backup route and is stored in the topology table. 可行的继任者是一个备份路由，它被保存在拓扑表中。
3. His successor will face similar constraints but will find it hard to speak so bluntly. 他的继任者将发现除了很难如此直率地讲话外，将面临类似的限制。
英英解释
n.
1. a person who follows next in order
2. a thing or person that immediately replaces something or someone
3. a person who inherits some title or office
