in step with 与...一致/协调
in tears 流着泪,在哭着
in the course of 在...期间/过程中
in the distance 在远处
in the end 最后,终于
in the event of 如果...发生,万一
in the face of 即使;在...面前
in the first place 首先
in the future 在未来
in the least 丝毫,一点
in (the)light of 鉴于,由于
in the way 挡道
in the world 究竟,到底
in time 及时
in touch 联系,接触
in turn 依次,轮流;转而
in vain 徒劳,白费力
instead of 代替,而不是
just now 眼下;刚才
little by little 逐渐地
lots of 许多
many a 许多
more or less 或多或少,有点
next door 隔壁的,在隔壁
no doubt 无疑地
no less than 不少于...;不亚于...
no longer 不再
no more 不再
no more than 至多,同...一样不
none other than 不是别的,正是
on one's guard 警惕,提防
nothing but 只有,只不过
now and then 时而,偶尔
off and on 断断续续,间歇地
off duty 下班
on a large/small scale 大/小规模地
on account of 由于
on(an/the) average 平均,通常
on behalf of 代表
on business 因公
on condition that 如果
on duty 上班,值班
on earth 究竟,到底