1. 校长：Head Teacher其实就是headmaster,但是headmaster是非常old-fashioned的称谓,每间学校门口都有一个牌子,上面是校名下面则是校长(head teacher)的名字.

2. 高级教师：助理教师 Teacher Aide | 高级教师 Head Teacher | 心理咨询教师 School Psychologist

3. 班主任：have to 必须;不得不 | head teacher 班主任 | healthy food 健康食品;保健品

4. 班主任;校长：hard adj.坚硬的;坚固的;困难的;艰苦的 | head teacher 班主任;校长 | heart n.心;内心

noun

1. the educator who has executive authority for a school

e.g. she sent unruly pupils to see the principal

Synonym: principalschool principalhead