波士顿市长宣布了城市发展的新举措。

The ___mayor of Boston announced new initiatives for urban development.

她担任市长的秘书，处理日常通讯。

She works as the ___mayor's secretary, handling daily communications.

市议会经过一场势均力敌的选举后，选出了一位新市长。

The city council elected a new ___mayor after a close election.