背1遍就想上考場大學英語考研單詞 804

[ti:] [ar:] [al:] [by:聽力課堂～vqdolsx.cn] [00:02]interval [00:03]In fact, scientists are not sure how the brain tracks time. [00:08]One theory holds that it has a cluster of cells specialized [00:12]to count off intervals of time; another that a wide array of [00:17]neural processes act as an internal clock.

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