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But experts say Japan is unique in that sales have been decreasing steadily over time.
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。
over time意为“随着时间的流逝，久而久之”。Bad habits are developed over time.against time意为“争分夺秒地，尽快地”。The medical team is racing against time to save the survivors of the plane crash.The train was one hour behind time.behind the time(s)意为“陈旧，落后，过时”。Your views on marriage are quite behind the times.每日一句经典句型150句合集