Sara Bubb offers her interpretation.
What they say
1 We offer good promotional opportunities.
2 A rare opportunity to join the staff of this school.
3 Highly disciplined school.
4 A new building is planned.
What it means
1 Few people can bear the school long enough to stay.
2 You will be the first new teacher in 10 years.
3 Teachers would bring back the cane.
4 The present one is a rat-infested ruin and it will be years before that new building is agreed.