Examples

I cooked too much, assuming maybe the guys would like an extra portion.

我煮了太多，心想这些人也许会多要一份。

On a subject like this it would be too assuming for me to decide.

让我对这样的题目做出决定，真的是太抬高我了。

冒名顶替

take another's place by assuming his name

就职伊始

upon assuming office

企业自负盈亏的经营方式非常受欢迎。

The enterprise's operational method of assuming sole responsibility for its profits or losses is well accepted by the people.

他总是摆出一副官架子。

He's always assuming official airs.