diff --git a/ckciw2lr900d0xas144h5fpwm.md b/ckciw2lr900d0xas144h5fpwm.md
index 9ed52a1..c0db3d9 100644
--- a/ckciw2lr900d0xas144h5fpwm.md
+++ b/ckciw2lr900d0xas144h5fpwm.md
@@ -2,7 +2,7 @@
 
 We use `[...someArray]` or `array.values()` to get multiple values out of a array.  And we kind of know how it works - it just returns us all the values from the array.  Internally, both of them uses the iterator protocol - which is already defined on array prototype.
 
-But do we really know the details of how in-built Array iterator works? Can you write a precise polyfill to implement iterator protocol on Array?
+But do we know exactly how the in-built Array iterator works? Can you write a precise polyfill to implement iterator protocol on Array?
 
 ## A little about the iterator protocol