2. Life seems like a lifetime, but in fact it is only three days, yesterday, today and tomorrow.
Yesterday is the past, today is the present and tomorrow is the future. No matter how good the past is, it will become history. No matter how bad it is now, we need to cherish it. No matter how far the future is, we must work hard.
4. Those who indulge in yesterday are the most confused, those who squander the present are the most stupid, and those who fear tomorrow are the most cowardly.
Extended data
Sentence-making skills:
Meaning method, first make sentences with the meaning of words, and then "substitute" words.
Vocabulary expansion, first group words to expand words, and then use phrases to make sentences.
Counterexample, some words are very easy to make mistakes, so "counterexample" can be used.
Situational method, you can create some situations when making sentences.
The complex sentence method requires the proper use of related words when making sentences.