n.

1. 假定，设想[U][C][+（that）]
   The facts proved her assumption wrong.

   事实证明她的设想是错的。

2. 担任；承担[U][C]
   The new governor's assumption of office takes place next Tuesday.

   新任州长于下星期二就职。

3. 夺取；篡夺[U][C][（+of）]
4. 僭越；自大[U]
   His air of assumption made him unpopular.

   他傲慢的样子使他不受欢迎。

5. 假装[U][C]
   with an assumption of indifference

   装着满不在乎的样子

n.

1. a thing that is assumed as true.
2. the action of assuming responsibility or control.
3. (Assumption) the reception of the Virgin Mary bodily into heaven, according to Roman Catholic doctrine.
   ▸the feast in honour of the Assumption, celebrated on 15 August.
4. archaic arrogance or presumption.