【period音标】 英[ˈpɪəriəd] 美[ˈpɪriəd]
【单词释义】 period是什么意思：
n.时期；（一段）时间；学时；句号
adj.具有某个时代特征的；（关于）过去某一特定历史时期的；（家具、服饰、建筑等）某一时代的
[单词分级] 中考英语词汇
[单词复数] periods
【关联词/派生词】
periodical n.（尤指学术）期刊,杂志 adj.周期的，定期的；时常发生的
periodic adj.周期的；定期的；间发性的
periodically adj. 定期地，周期性地；偶尔，间歇
【单词例句】
◇ As an added precaution, the FDA recommends that you don't lean or stand directly against a microwave oven for long periods while it's operating.
作为一项额外的预防措施，FDA建议你在微波炉工作时不要长时间地直接贴靠或直接站在微波炉前面。
---- Is It Safe to Stand in Front of Microwave Ovens?
◇ The other factor affecting how well a beverage hydrates relates to a drink's nutrient composition. For example, milk was found to be even more hydrating than plain water because it contains the sugar lactose, some protein and some fat, all of which help to slow the emptying of fluid from the stomach and keep hydration happening over a longer period of time.
另一个影响饮料补水功效的因素和饮料的营养成分有关。例如，研究人员发现，牛奶的补水功效甚至比白水更佳，因为牛奶含有乳糖、蛋白质和脂肪，这些成分都有助于减缓液体从胃里排空的速度，延长补水的功效。
---- Which drink is best for hydration? Hint: It isn't water
◇ In fact, women who took 4,400 steps per day, on average, were about 40 percent less likely to die during the follow-up period of about four years compared with women who took 2,700 steps. The findings were published Wednesday in JAMA Internal Medicine.
事实上，与每天走2700步的女性相比，平均每天走4400步的女性在大约四年的随访期间死亡的可能性要低40%。该研究结果于上周三发表在《美国医学会内科杂志》上。
---- How Many Steps You Need To Take A Day To Maintain Good Healt
◇ At the end of the 12-week study period, the comedy group improved by 10% in a test measuring how much oxygen their heart could pump around the body.
在长达12周的研究结束时，科学家对他们的身体进行检查后发现，观看喜剧的小组成员心脏供应全身的氧气流量增加了10%。