Ключевые слова: background, banner, bewilder, bewilderment, business, challenge, choice, choose, complex, complicate, confuse, confusion, copy, curious, decision, direction, doubt, emotion, expression, frustration, goal, idea, inability, issue, letter, management, mental, mysterious, perplex, problem, procedure, process, puzzle, query, question, solution, space, student, target, think, tile, trouble, uncertainty, unclear, understand, way, word, work, worry,