Turkey election: Erdoğan faces his greatest challenge yet
土耳其选举： 埃尔多安面临执政以来最大挑战

After 21 years in power, the president is in a tight contest with a united opposition determined to change the course of the nation
在执政21年后，土耳其总统埃尔多安与决心改变国家进程并团结一致的反对派展开了激烈竞争。