how to just print words on screen in flutter code example

Example 1: flutter text multiple styles

RichText(
  text: TextSpan(
    text: 'Hello ',
    style: DefaultTextStyle.of(context).style,
    children: <TextSpan>[
      TextSpan(text: 'bold', style: TextStyle(fontWeight: FontWeight.bold)),
      TextSpan(text: ' world!'),
    ],
  ),
)

Example 2: Flutter new paragraph text

child: Container(
         child :  Text('''
                          Text1
                          Text2
                          Text3''',maxLines: 20, style: TextStyle(fontSize: 16.0 ,fontWeight:FontWeight.bold,color: Colors.black) , )
      ),