副班长: vice-monitor
班长:
1. class monitor
2. squad leader
3. team leader
Relative explainations:
<monitor(program)> <head boy> <ganger> <shiftman> <leading hand> <class leader> <squad commander>
Examples:
1. 下课后，班长把练习册收了起来。
The monitor collected the exercise books after the class was over.
2. 许多学生缺席，特别是连班长也没来。
Many students were absent, notably the monitor.
3. 班长确实比我们略胜一筹。
The monitor is really a notch above us.
4. 班长把试卷分发给同学们。
The monitor handed the papers out to the classmates.