To make the expression stronger put 'really' before the negative auxiliary.

要加强表语气，可以把 really 放在否定助动词之前。

These words make a statement about something a little stronger.

这几词加强了句子语气。

Now an even stronger word is the verb 'seize'.

那么还有一语气更加强词是‘抓住’。

Another meaning of " anyway" is to give more force to a question, as in: You can't go to the front of the line. Who do you think you are, anyway?

anyway另一是加强问句语气，比如：你不能走到队伍前面。你以为你到底是谁？

Using the word 'plain' in this context emphasises the adjective that follows. Just plain ugly - means: very ugly.

这里用到" plain" 这单词是加强后面形容词语气。Plain ugly是非常丑。

It's there to intensify the adjective, to make the meaning stronger.

它们是用来加强形容词语气，来让更加强烈。