diff --git a/app/src/main/res/layout/adapter_book_source_item.xml b/app/src/main/res/layout/adapter_book_source_item.xml
index 1b7a1e61cd..297b33f39d 100644
--- a/app/src/main/res/layout/adapter_book_source_item.xml
+++ b/app/src/main/res/layout/adapter_book_source_item.xml
@@ -34,7 +34,8 @@
                 android:padding="8dp"
                 android:layout_weight="1"
                 android:background="@drawable/bg_ib_pre_round"
-                android:src="@drawable/ic_edit" />
+                android:src="@drawable/ic_edit"
+                android:contentDescription="@string/edit_source" />
 
             <ImageView
                 android:id="@+id/iv_top_source"
@@ -44,7 +45,8 @@
                 android:padding="8dp"
                 android:layout_weight="1"
                 android:background="@drawable/bg_ib_pre_round"
-                android:src="@drawable/ic_top_source_black_24dp" />
+                android:src="@drawable/ic_top_source_black_24dp"
+                android:contentDescription="@string/top_source" />
 
             <ImageView
                 android:id="@+id/iv_del_source"
@@ -54,7 +56,8 @@
                 android:padding="8dp"
                 android:layout_weight="1"
                 android:background="@drawable/bg_ib_pre_round"
-                android:src="@drawable/ic_clear_all" />
+                android:src="@drawable/ic_clear_all"
+                android:contentDescription="@string/del_source" />
         </LinearLayout>
 
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index e74b865815..db6a50eafa 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -232,5 +232,8 @@
     <string name="text_size">字号</string>
     <string name="line_size">行距</string>
     <string name="paragraph_size">段距</string>
+    <string name="edit_source">编辑书源</string>
+    <string name="top_source">置顶书源</string>
+    <string name="del_source">删除书源</string>
 
 </resources>