Update README.md

README.md

@@ -18,3 +18,8 @@ the cosin score of us: 0.897
 the cosin score of simcse: 0.846
 
 the cosin score of us: 0.753
+
+--------------------------------------------------
+It's still a big challenge for us to measure semantic similarity of figurative language from the sentence embedding perspective.
+
+unsupvised models may useless as the key is to infer the literal meaning of the figurative expression, since the annotated is rare.