vt.

1. 塗，敷；將……鋪在表面[（+to）]
   The nurse applied the ointment to the wound.

   護士把藥膏敷到傷口上。

2. 應用；實施[（+to）]
   We should apply both theories in the language classroom.

   我們應把兩種理論都運用到語言教室中去。

3. 使起作用；使適用[W][（+to）]
   This rule can not be applied to every case.

   這條規則並不是在每種情況下都能適用的。

4. 把……用（於）[（+to）]
5. （後常接oneself）使致力（於），使專心從事[（+to）]
   He applied himself to learning French.

   他致力於學習法語。

vi.

1. 申請，請求[（+for/to）][+to-v]
   He has applied for a post in England.

   他已申請在英國任職。

2. 起作用；適用[W][（+to）]
3. 專心致志
4. 有關係，相關聯[W][（+to）]

v.

1. make a formal request.
   ▸put oneself forward as a candidate for a job.
2. be relevant.
   ▸bring into operation or use.
3. put (a substance) on a surface.
4. (apply oneself) work hard.