on occasion 有时,不时
occur to 被想到,被想起
at odor (with) (与)…不一致;差异,争执
off and on 断断续续,不时的
and so on 等等
all at once 突然,同时,一起
at once 立刻,马上
once (and) for all 一劳永逸,限此一次
once more 再一次,又一次
one another 相互
by oneself 独自的,单独的
come/go onto operation 开始运转,开工
put/bring into operation 使投入生产,使运转
in order 秩序井然,整齐
in order to 以便,为了
in order that 以便
本文来自:逍遥右脑记忆 https://www.jiyifa.com/zhongkao/103704.html
相关阅读:2019中考英语介词用法(1)