人們會放棄，常常不是因為難度問題，往往是因為，不再值得繼續下去。People don't leave because things are hard. People do leave because it's no longer worth it. 

人們會放棄，常常不是因為難度問題，往往是因為，不再值得繼續下去。People don't leave because things are hard. People do leave because it's no longer worth it.