diff --git a/script/netvis_portal.sh b/script/netvis_portal.sh
index 113eb15..9a54ef7 100755
--- a/script/netvis_portal.sh
+++ b/script/netvis_portal.sh
@@ -20,14 +20,14 @@ function usage() {
 	echo 'signet -v [OPTION VAL] ...'
         echo -e '\n'
 	echo 'Description:'
-        echo '  --Afreq                      matrix of edge frequencies from bootstrap results'
+        echo '  --Afreq                      matrix of regulation frequencies from bootstrap results'
         echo '  --freq                       bootstrap frequecy for the visualization'
 	echo '  --ntop                       number of top sub-networks to visualize'
         echo '  --coef                       coefficient of estimation for the original dataset'
         echo '  --vis.genepos                gene position file'
-        echo '  --id                         NCBI taxonomy id, e.g. 9606 for Homo sapiens, 10090 for Mus musculus'
-        echo '  --assembly                   genome assembly, e.g. hg38 for Homo sapiens, mm10 for Mus musculus'
-        echo '  --tf                         transcirption factor file, you don't have to specify any file if it's for human'
+        echo '  --id                         NCBI taxonomy id, e.g. 9606 for Homo Sapiens, 10090 for Mus musculus'
+        echo '  --assembly                   genome assembly, e.g. hg38 for Homo Sapiens, mm10 for Mus musculus'
+        echo '  --tf                         transcirption factor file, only sepecified for non-human data'
         echo '  --resv                       result prefix'
 	echo '  --help                       usage'
 	exit -1