394. But experts say Japan is unique in that sales have been decreasing steadily over time.

译文

但是专家认为，日本的情况较为特殊，因为它的销售量一直都在随着时间的推移而持续下降。

点睛

in that意为“由于，因为”。over time意为“随着时间的流逝，久而久之”。如：
Bad habits are developed over time. 坏习惯随着时间的积累慢慢养成。

考点归纳

与time有关的短语还有：
against time意为“争分夺秒地，尽快地”。如：
The medical team is racing against time to save the survivors of the plane crash. 医疗人员正争分夺秒地抢救坠机事故中的幸存者。
behind time意为“迟了，误时”。如：
The train was one hour behind time. 火车晚点一个小时。
behind the time(s)意为“陈旧，落后，过时”。如：
Your views on marriage are quite behind the times. 你的婚姻观已经相当过时了。