专程: specifically, specially (for that purpose)...
深夜: very late at night...
招募: to recruit, to enlist...
里程碑: milestone...
解说: to explain, to comment...
东张西望: to look in all directions (idiom), to glance around...
录音: to record (sound), sound recording...
哎: hey!, (interjection used to attract attention or to express surprise or disapprobation)...
接见: to receive sb, to grant an interview...
上当: taken in (by sb's deceit), to be fooled, to be duped...
