diff --git a/app/commitlint.config.js b/app/commitlint.config.js
index 148b3b86..7e69c388 100644
--- a/app/commitlint.config.js
+++ b/app/commitlint.config.js
@@ -88,7 +88,7 @@ module.exports = {
           when = 'always',
         ) {
           const negated = when == 'never';
-          const includesMotivation = `${body}`.includes('Because ');
+          const includesMotivation = (`${body}`.match(/^[Bb]ecause[.\n]/) != null);
           return [
             negated ? !includesMotivation : includesMotivation,
             'body ' +
diff --git a/content/Lesson11.json b/content/Lesson11.json
index 2bde8544..e98f1e38 100644
--- a/content/Lesson11.json
+++ b/content/Lesson11.json
@@ -347,7 +347,7 @@
           { "个": "90f79865-ac90-4644-9a8b-88eaad30e979" },
           {
             "validOptions": [
-              { "外甥女": "b6ebbe69-9834-41f3-a353-4a9142d599b3" }
+              { "外甥": "54ff3fa1-141e-4620-861d-335376b3f8f2" }
             ]
           },
           { "。": "5d0f410c-83ff-43bd-a31e-922b42b054ef" }
diff --git a/content/WordSpec.json b/content/WordSpec.json
index db771a1b..b8b7acef 100644
--- a/content/WordSpec.json
+++ b/content/WordSpec.json
@@ -691,17 +691,17 @@
     "bdc5f8ba-117c-433e-9325-68e8c0a71bdf": {
       "word": "小",
       "audio": "audio/小.mp3",
-      "picture": "pics/小中大.jpg"
+      "picture": "pics/小.jpg"
     },
     "253fd710-528f-4749-83c8-a3e1eda9fd64": {
       "word": "中",
       "audio": "audio/中.mp3",
-      "picture": "pics/小中大.jpg"
+      "picture": "pics/中.jpg"
     },
     "f2c41150-06fb-4c45-be9d-6caa65d66ee2": {
       "word": "大",
       "audio": "audio/大.mp3",
-      "picture": "pics/小中大.jpg"
+      "picture": "pics/大.jpg"
     },
     "37932876-7996-4dfc-9e4e-54f3a6bee6da": {
       "word": "学",
diff --git "a/content/pics/\344\270\255.jpg" "b/content/pics/\344\270\255.jpg"
new file mode 100755
index 00000000..d6252eaa
Binary files /dev/null and "b/content/pics/\344\270\255.jpg" differ
diff --git "a/content/pics/\345\244\247.jpg" "b/content/pics/\345\244\247.jpg"
new file mode 100755
index 00000000..5b3678a4
Binary files /dev/null and "b/content/pics/\345\244\247.jpg" differ
diff --git "a/content/pics/\345\260\217.jpg" "b/content/pics/\345\260\217.jpg"
new file mode 100755
index 00000000..7a965000
Binary files /dev/null and "b/content/pics/\345\260\217.jpg" differ