研究团队将1万名用户的评论以1年为期进行划分，一年前的言论作为查询集，一年后的言论作为候选池。
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It’s a regrettable reality that there is never enough time to cover all the interesting scientific stories we come across each month. So every month, we highlight a handful of the best stories that nearly slipped through the cracks. February’s list includes the revival of a forgotten battery design by Thomas Edison that could be ideal for renewable energy storage; a snap-on device to turn those boxers into "smart underwear" to measure how often we fart; and a dish of neurons playing Doom, among other highlights.。关于这个话题，heLLoword翻译官方下载提供了深入分析
发放消费券、门票优惠券、酒店代金券……春节假期，各地推出丰富的促消费活动，带动文旅消费“热辣滚烫”。如何更好发挥文旅消费券的杠杆作用？除了消费券，撬动文旅发展还有哪些实招？本期大家谈，我们选刊3篇来稿，与大家共同思考。