感叹词是用于表达各种感情的词。它与后面句子的其余成分无语法联系。

In grammar, an interjection or exclamation is a word used to express a particular emotion or sentiment on the part of the speaker. In the past, it was sometimes called an ejaculation, although this is no longer common. Filled pauses such as uh, er, um are also considered interjections. Interjections are often placed at the beginning of a sentence.