Even better: Go to bed early enough so that waking up when the sun shines through your window still gives you the recommended seven hours of shut-eye.

更好的情况是：尽早上床睡觉，当太阳从你的窗户里照射进来时，你已经有了7个小时的睡眠。

youdao

When the sun started to go down, he stopped and set up a tent.

太阳开始下山了，他停下来，竖起帐篷。

youdao

Go to bed early enough so that waking up when the sun shines through your window still gives you the recommended seven hours of shut-eye.

尽早上床睡觉，这样当太阳光从窗户里面照射进来的时候，你已经有了7小时的睡眠时间，这也是我们所推荐的睡眠时长。

youdao

We call these stars supergiants and they are 20 times more massive than our own sun and so when these stars go supernova they expand to a radius of up to a billion miles, becoming the biggest and brightest star in the universe.

BBC: NASA's Swift satellite observes massive supernova stars

Yet even when it does, the sun will come up in the morning and life will go on as if nothing is happening, such is the chronic way the world changes.

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