主句是But sometimes the day comes,主句的主语the day谓语是comes且为不及物动词. When you learn from all your failures and think"Those who dare to fail greatly
can achieve greatly."是when引导的时间状语从句,此从句中用了直接引语"Those who dare to fail greatlycan achieve greatly."直接引语中who引导一个定语从句且在从句中作主语,此直接引语中Those为主语can achieve 是谓语,定语从句中who为主语,谓语为dare to fail .
When you learn from all your failures and think"Those who dare to fail greatly can achieve greatly."中的“and”连接词性相同的单词短语或句子,在此句中连接了两个动词 learn 和 think并不是两个句子,所以and并没有连接并列从句.