When reading in notification, I may run across a word I don’t recognize. I cannot recall my dictionary for a definition. It only lets me copy the entire paragraph. Sometimes I only want to copy a sentence in a paragraph but only lets me copy the entire

I prefer to copy one sentence in a paragraph not the entire paragraph. I cannot now it only lets me copy the entire paragraph.  In addition, while reading I will come across a word I don’t know. I used to be able to call up my dictionary for the definition but not now.