diff --git a/public/react/src/modules/courses/poll/PollDetailTabThird.js b/public/react/src/modules/courses/poll/PollDetailTabThird.js
index c0d748974..b0bc95cea 100644
--- a/public/react/src/modules/courses/poll/PollDetailTabThird.js
+++ b/public/react/src/modules/courses/poll/PollDetailTabThird.js
@@ -90,7 +90,7 @@ class PollDetailTabThird extends Component{
                           return(
                             <li className="df">
                               <Radio className="fl" value={index.answer_id}></Radio>
-                              <span className={index.answer_text=="其他"?"break_word":"break_word flex1"}>{index.answer_text}</span>
+                              <span className={index.answer_text=="其他"?"break-word":"break-word flex1"}>{index.answer_text}</span>
                               {
                                 index.answer_text=="其他" ? <p className="textLine"></p>:""
                               }
@@ -110,7 +110,7 @@ class PollDetailTabThird extends Component{
                           return(
                             <li className="df">
                               <Checkbox className="fl mr8" value={index.answer_id}></Checkbox>
-                              <span className={index.answer_text=="其他"?"break_word":"break_word flex1"}>{index.answer_text}</span>
+                              <span className={index.answer_text=="其他"?"break-word":"break-word flex1"}>{index.answer_text}</span>
                               {
                                 index.answer_text=="其他" ? <p className="textLine"></p>:""
                               }