我需要能够编写一个函数来显示字符串中重复的单词并按顺序返回字符串列表并忽略非字母
例如,在拥抱提示
repetitions :: String -> [String]
repetitions > "My bag is is action packed packed."
output> ["is","packed"]
repetitions > "My name name name is Sean ."
output> ["name","name"]
repetitions > "Ade is into into technical drawing drawing ."
output> ["into","drawing"]