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We're often told to drink around 8 glasses of water a day to stay healthy, but the honest truth is that this specific number is somewhat arbitrary, and no scientific research exists to support it.
我們常聽到:人一天要喝八杯水來保持健康。但事實上,這個喝水的量是沒有根據的;現有的科學研究亦無法證實此論點。
學習重點
2. arbitrary 武斷的
arbitrary
[ˋɑrbə͵trɛrɪ] (adj.) 武斷的
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