n.

1. 家庭教师，私人教师
   His parents employed a tutor to teach him mathematics.

   他的父母雇了一位家庭教师教他数学。

2. 辅导教师
3. 【美】（大学中的）助教
4. 【英】（大学中的）导师
5. 【律】（未成年者的）监护人

vt.

1. 当……的教师；辅导；指导[（+in）]
   John tutored the child in English.

   约翰辅导那孩子学英语。

vi.

1. 当家庭教师；当辅导教师
2. 【美】在家庭教师指导下学习[（+in）]
   The boy is tutoring in arithmetic.

   这男孩在家庭教师指导下学算术。

n.

1. a private teacher, typically one who teaches a single pupil or a very small group.
   ▸chiefly Brit. a university or college teacher responsible for assigned students.
   ▸US an assistant lecturer in a college or university.
2. Brit. a book of instruction in a particular subject.

v.