diff --git a/README.md b/README.md
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@@ -31,7 +31,7 @@ All of the trained models will be open-source. Inference is very fast (only matr
 
 Check https://github.com/BlinkDL/RWKV-v2-RNN-Pile for L24-D1024 and L12-D768 models trained on the Pile (and the latest code). It's very fast on CPU (the default mode).
 
-Read the inference code in https://github.com/BlinkDL/RWKV-v2-RNN-Pile/blob/main/src/model.py and try using the final hidden state（.xx .aa .bb) as a faithful sentence embedding for other tasks.
+Read the inference code in https://github.com/BlinkDL/RWKV-v2-RNN-Pile/blob/main/src/model.py and try using the final hidden state（.xx .aa .bb) as a faithful sentence embedding for other tasks (probably you shall begin with .xx and .aa/.bb (.aa divided by .bb)).
 
 See the release here for a 27M params model on enwik8 with 0.72 BPC(dev). Run run.py in https://github.com/BlinkDL/RWKV-LM/tree/main/RWKV-v2-RNN.