diff --git a/flash.html b/flash.html
index 6bbc13c..b36513f 100644
--- a/flash.html
+++ b/flash.html
@@ -11,16 +11,16 @@
     <div id="flash-container">
         <div id="focus-text" class="white-text" style="display: none;">集中!/Focus!</div>
         <div id="number-display">0</div>
-        <label for="num-select">表示する数字の数(Number of numbers to display):</label>
+        <label for="num-select">表示する数字の数/Number of numbers to display:</label>
         <select id="num-select">
-            <option value="3">3つ(難易度:簡単)</option>
-            <option value="5">5つ(難易度:普通)</option>
-            <option value="10">10つ(難易度:難しい)</option>
+            <option value="3">3つ(難易度:簡単/Difficulty: Easy)</option>
+            <option value="5">5つ(難易度:普通/Difficulty: Normal)</option>
+            <option value="10">10つ(難易度:難しい/Difficulty: Hard)</option>
         </select>
 
-        <button id="start-button">スタート</button>
+        <button id="start-button">Start</button>
         <input type="text" id="answer" placeholder="答えを入力">
-        <button id="check-button">チェック</button>
+        <button id="check-button">Check</button></button>
     </div>
     <div id="result"></div>
     <script src="flash.js"></script>