In addition, it may be used to express a solemn statement, reminder, frank talk, warning, order, emphasis, etc, which, as its discursive functions, are grounded on the attention-drawing function. 此外,它还可以表达郑重告知、提醒、坦陈、警告、命令、强调等话语功能,而这些功能都是以提请听话人的注意为基础的。