可可電臺，每期節目一話題，讓英語磨練耳朵的同時學到更多有益的小知識，豐富知識的同時受益于生活。

健康好習慣

Exercise at least 3-4 times a week

每周運動3-4次

All the healthy habits in the world won't help your overall fitness if you sit on the couch all day. To be a healthy man, get up and get active. But how much exercise is enough? Most major health organizations suggest at least 30 minutes of regular, moderate-intensity physical activity on most days to prevent cardiovascular diseases and to maintain fitness. This, of course, comes with the footnote that more exercise is always better.

如果你成天窩在沙發里頭，神都救不了你。人要活，就要動。可是多少運動才夠呢？每天30分鐘中等強度的運動是最能防止疾病和保持身材的。

【知識點講解】

footnote n.腳注； 補充說明；

例句：

I'm afraid that his name will now become a footnote in history.

恐怕他的名字現在會成為歷史的注腳。

A footnote is made at the bottom of the page.

注腳列在書頁下端.

The asterisk refers the reader to a footnote.

星號是讓讀者參看腳注.

at least adv.至少；

例句：

Try to eat at least four slices of bread a day.

每天盡量至少吃4片面包。

Whatever its obscurities, the poem was clear on at least one count.

這首詩再怎么晦澀，至少有一點是清楚的。

The police say his death was an accident, officially at least.

警方說他的死是個意外，起碼官方消息如此。

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