同学你好，该知识点来自沪江网校《大学水平直达CATTI二级（笔译+口译）3年畅学班【老学员专享】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好
两个不定式并列，由and或or连接时，后一个不定式可省略to。这里省略也是可以的，写出来也可以。
1.两个并列的‍带不定式有对比含义，第二个不定式符号便不能省略。例如：
To be or not to be, that is the question.
2.不用并列连词的情况下，第二个不定式符号也不能省略。例如：
Please go to the seaside to swim, to get suntanned.
He likes to stay with the peasants, to work in the fields with them.
3.当三个或三个以上带不定式构成排比结构时，所有的不定式符号均须保留。例如：
Read not to contradict or confute; nor to believe and take for granted; not to find talk and discourse; but to weigh and consider.
希望对同学有帮助！