Your question is a little confusing but from what I understand, you'd like whatever is between the full stops (and the space) to be a select-able element? How is this:
splitter = ". ";
$(function(){
words = $("#text").text().split(". ");
$("#text").html("");
for(i=0; i< (words.length-1); i++){
$("#text").append("<span class='textPart'>"+words[i]+"</span>"+ splitter );
}
$("#text").delegate(".textPart", "mouseover", function(){
$("#hovered").html($(this).text());
});
});
Here's a demo
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…