她早上七点上班，晚上六点半下班，用英语可以这样说：

She goes to work at seven in the morning and leaves at six thirty in the evening.

早上 : in the morning

上班 : go to work; start work; be on duty

晚上 : in the evening; at night

六点半 : half past six; six thirty;

下班 : come or go off work; be off duty;

上班