n.[C]

1. 增补，补充[（+to）]
   The money they get from fruit-picking is often a supplement to incomes earned in the town.

   他们靠采摘水果所得的钱常常是在城里所挣收入的补贴。

2. （书籍的）补遗；附录；（报刊等的）增刊，副刊[（+to）]
   The story first appeared in the Times Literary Supplement.

   这个短篇小说第一次是发表在《泰晤士报文学副刊》上的。

3. 补给品
   a diet supplement

   饮食补给品

4. 【数】补角；补弧

vt.

1. 增补，补充；为……补编附录[（+with/by）]
   She got a part-time job to supplement the family income.

   她找了一个兼职工作以补充家庭收入。

n.

1. a thing added to something else to enhance or complete it.
2. a separate section, especially a colour magazine, added to a newspaper or periodical.
3. an additional charge payable for an extra service or facility.
4. Geometry  the amount by which a given angle is less than 180°.

v.