diff --git a/java/res/values-ja/strings.xml b/java/res/values-ja/strings.xml
index f9ec7f5..1d72ef4 100644
--- a/java/res/values-ja/strings.xml
+++ b/java/res/values-ja/strings.xml
@@ -25,7 +25,7 @@
     <string name="english_ime_input_options" msgid="3909945612939668554">"入力オプション"</string>
     <string name="vibrate_on_keypress" msgid="5258079494276955460">"キー操作バイブ"</string>
     <string name="sound_on_keypress" msgid="6093592297198243644">"キー操作音"</string>
-    <string name="popup_on_keypress" msgid="123894815723512944">"キー押下時に文字をポップアップ表示"</string>
+    <string name="popup_on_keypress" msgid="123894815723512944">"キー押下時ポップアップ"</string>
     <string name="hit_correction" msgid="4855351009261318389">"入力ミス補正"</string>
     <string name="hit_correction_summary" msgid="8761701873008070796">"入力間違いを自動修正する"</string>
     <string name="hit_correction_land" msgid="2567691684825205448">"横表示での入力修正"</string>
@@ -93,10 +93,18 @@
     <string name="label_next_key" msgid="362972844525672568">"次へ"</string>
     <string name="label_done_key" msgid="2441578748772529288">"完了"</string>
     <string name="label_send_key" msgid="2815056534433717444">"送信"</string>
-    <string name="label_symbol_key" msgid="6175820506864489453">"?123"</string>
+    <!-- no translation found for label_to_symbol_key (8516904117128967293) -->
+    <skip />
     <string name="label_phone_key" msgid="4275497665515080551">"123"</string>
-    <string name="label_alpha_key" msgid="8864943487292437456">"ABC"</string>
+    <!-- no translation found for label_to_alpha_key (4793983863798817523) -->
+    <skip />
     <string name="label_alt_key" msgid="2846315350346694811">"ALT"</string>
+    <!-- no translation found for label_backspace_key (1565088006686703828) -->
+    <skip />
+    <!-- no translation found for label_shift_key (1244253491349109696) -->
+    <skip />
+    <!-- no translation found for label_return_key (9063335866574194922) -->
+    <skip />
     <string name="label_more_key" msgid="3760239494604948502">"Shift"</string>
     <!-- no translation found for label_tab_key (6532779603382157482) -->
     <skip />