vt.

1. 使不同；變更；修改
   He never varied his habits.

   他從未改變過自己的習慣。

2. 使多樣化
   Teachers should vary their lessons to make them more interesting.

   為了增加趣味，教師應該使自己的課多樣化。

3. 【音】變奏（曲調或主題）

vi.

1. 變化；呈多樣化[（+in/on/with）]
   That sort of thing varies from person to person.

   那種事因人而異。

2. 偏離；違反[（+from）]
3. 【生】變異
4. 【數】成比例變化

v.

1. differ in size, degree, or nature from something else of the same general class:
   the properties vary in price.
2. change from one form or state to another.
   ▸modify or change (something) to make it less uniform.