WORD eating Solution

When editing a Word document, the word is always eaten. I don't know what is going on. Note: When you write a sentence and want to insert a word, the word behind the newly inserted word is gone. If you insert another word, I don't know what's going on after the new plug-in?
 
 
The rewrite mode is adopted. Just click the insert key on the keyboard to switch to the insert mode.
 
What you want is the "insert" status, which is now in the "edit" status. Press the Insert key to switch the "edit"/"Insert" status.
 
You can also double-click "Rewrite" in the status bar ".
 
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