diff --git a/public/docs/ts/latest/tutorial/toh-pt6.jade b/public/docs/ts/latest/tutorial/toh-pt6.jade
index 5bb931acca..1b3a14a344 100644
--- a/public/docs/ts/latest/tutorial/toh-pt6.jade
+++ b/public/docs/ts/latest/tutorial/toh-pt6.jade
@@ -264,6 +264,8 @@ block get-heroes-details
   .l-sub-section
     :marked
       You'll add more operators, and learn why you must do so, [later in this tutorial](#rxjs-imports).
+      
+      我们还要添加更多的操作符，并且必须这么做，要了解其中的原因，参见[本章稍后的部分](#rxjs-imports)。
 
   :marked
     ### Extracting the data in the *then* callback