interjection

interjection
noun

an abrupt remark, made especially as an aside or interruption
（突然的）插话，打断
■an exclamation, especially as a part of speech (e.g. ah!, dear me!)
感叹词，感叹语（尤指作为一种词类，如 ah!, dear me!）

派生
interjectional
adjective
语源

late Middle English: via Old French from Latin interjectio(n-), from the verb interjicere (see interject)