at a time 每次,一次
at no time 从不,决不
at one time 曾经,一度
at the same time 同时;不过,然而
at times 有时,间或
for the time being 眼下,暂时
from time to time有时,不时
in no time 立即,马上
in time 及时
on time 准时
on top of 除…之外
out of touch(with) 不联系,不接触
in truth 事实上,的确
by turns 轮流地,交替地
in turn 依次地,轮流地;转而,反过来
in vain 徒然,白费力
a variety of 种种,多种多样的
by virtue of 由于,借于
by the way 顺便地,附带地说
by way of 经由,经过;通过…方式
in a way 在某一点上看,在某种程度上
in no way 决不