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Humans are pegged to a 24-hour cycle. We're locked into it not just by day and nighttheres the master timepiece in the brain called the circadian clock. But it doesn't make sense to live by a 24-hour clock in the Arctic, where it's dark or light for
[00:03.81]assembly line :装配线 [00:05.95]automated :a.自动化的 [00:07.70]breakthrough :n.突破 [00:09.58]capacity utilization :产能利用 [00:12.32]component :n.零件 [00:14.15]electronics :n.电子产品 [00:16.19]farm produce :农业产品
A new supplier 新供货商 A: Hi Steve. What do you think of the new supplier? A:你好史蒂夫。你认为这个新的供货商如何? B: We haven't had any problems so far. They offer a 24-hour technical back-up service. We've called them in th
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今天我们要学的词是academic。Academic 学术的。Five states in America will add at least 300 hours to the academic calendar in some schools this year. 美国五个州今年会给一些学校的学生增加至少300个小时的教学时间。