to not include sth/sb, either deliberately or because you have forgotten it/them 删除；忽略；漏掉；遗漏;省略
SYN leave sb/sth out
~ sth/sb
If you are a student, you can omit questions 16–18.
学生可以免答 16–18 题。
~ sth/sb from sth
People were surprised that Smith was omitted from the team.
人们感到惊讶，史密斯竟未入选该队。