annul

[ə'nʌl]

v. 废除, 消减, 取消, 宣告无效

例句与用法：

Peter gave to his wife an annuity of￡200 a year, to be issuing out of his lands.

彼得每年给其妻200镑年金，此款出自其地产之收益。

词形变化：

动词过去式: annulled | 动词过去分词: annulled | 动词现在分词: annulling | 动词第三人称单数: annuls |

详细释义：

vt.

1. 废除, 取消; 宣告……无效

The treaty was annulled several years ago.

那个条约于数年前被废除。

2. 使消失; 抹去

annul the drug's effect

使药失去疗效