You can quickly exit manual formatting by pressing CommandCtrl+Shift+X. For example, if you have pressed CommandCtrl+B to apply the bold typeface to the text that you type, press CommandCtrl+Shift+X to return to the default character format of the paragraph.
Dhangi'uu kallattii barruu durumaan jiruu haaromsuuf, barricha filadhu, sana booda ajaja baafataa Dhangii - Dhangi'uu Durtii filadhu.