according to the most basic or original meaning of a word or expression

按照原义，根据字面意思:

The name of the cheese is Dolcelatte, literally meaning 'sweet milk'.

这种奶酪名叫 Dolcelatte，字面意思是“甜牛奶”。

I said I felt like quitting, but I didn't mean it literally (=I did not mean exactly what I said) !

我是说想不干了，但并不是真的不干了！

take sb / sth literally, to believe exactly what someone or something says rather than trying to understand their general meaning

仅仅从字面上理解某人/某事物:

She takes the Bible literally.

她是从字面上去理解《圣经》的。

used to emphasize that something, especially a large number, is actually

true 的确，确实〔用于加强语气，尤指数目庞大〕:

The Olympic Games were watched by literally billions of people.

奥运会确实有几十亿人观看。

[spoken] used to emphasize a strong expression or word that is not being used in its real or original meaning. Some people consider this use to be incorrect.

简直〔用于加强本已强烈的语气; 有些人认为这种用法不正确〕:

Dad was literally blazing with anger.

爸爸简直是火冒三丈。