Flutter Text in Column auto multiline

I want a minimum spacing of 20 between Left Text and Right Text, and Left Text can multi Line automatically

Limiting the width on the left or right side does not solve the problem well, because the length of Right Text is also uncertain.

I tried many ways, but without success, Please Help. Thanks very much!

  Future<void> _pop() async {
    final res = await showModalBottomSheet(
        context: context,
        isScrollControlled: true,
        builder: (BuildContext context) {
          return DemoView();
        });
  }

import 'package:flutter/material.dart';

class DemoView extends StatelessWidget {
  DemoView({super.key});
  final list = ['A Very Long Text ' * 2, 'B Text --------- Text', 'C Text'];
  final list1 = ['Right Text', 'Right Text Right Text', 'C Text'];

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(16),
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          ...list.mapIndexed((i, e) => Container(
                color: Colors.grey,
                padding: const EdgeInsets.all(16),
                margin: const EdgeInsets.all(16),
                child: Row(
                  children: [
                    Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          e,
                          maxLines: 3,
                          // softWrap: true,
                          // overflow: TextOverflow.ellipsis,
                        ),
                        Text('C Short Text'),
                      ],
                    ),
                    const Spacer(),
                    Container(
                      constraints: BoxConstraints(minWidth: 20),
                    ),
                    Text(
                      list1[i],
                      textAlign: TextAlign.end,
                    )
                  ],
                ),
              ))
        ],
      ),
    );
  }
}

extension ListExtensions<E> on List<E> {
  Iterable<R> mapIndexed<R>(R Function(int index, E element) convert) sync* {
    for (var index = 0; index < length; index++) {
      yield convert(index, this[index]);
    }
  }
}