单词	time span
释义	time spanˌtime span, time‧span /ˈtaɪmspæn/ noun [countable] Examples EXAMPLES FROM THE CORPUS Development of all major new weapons programmes would nevertheless continue but over a longer time span. I call this measure the responsibility time span of the role. Statistically this loss rate is low seen in the perspective of the number of flying Spitfires over this time span. The time span of observation in these studies varies from a few minutes to several hours. The time span which is likely to be required for a generation of more effective large-scale entrepreneurs to evolve is considerable. This survey provides a particularly rich source of data because of the long time span covered. We shall not make any comments about this until we have had a chance to inspect a longer time span. a period of time:  It’s difficult to imagine a time span of a million years.
随便看	conciliatory concise concisely conciseness conclave conclude concluding conclusion conclusive conclusively concoct concoction concomitant concomitantly Concord concord concordance concordant Concorde concourse concrete concrete jungle concretely concrete mixer concrete noun

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