You should sleep more than you do.

你应该有更多的睡眠。

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You should sleep early, or you will be tired tomorrow.

你应该早点睡觉，否则的话明天会很疲惫的。

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Do you feel as if you should sleep, Miss? Asked Bessie, rather softly.

“你觉得该睡了吗，小姐？”贝茜问，口气相当温存。

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If you are among those in the line of fire, a good home insurance plan that includes windstorm coverage should help you sleep better at night.

FORBES: Hurricane Irene And The $5,000 Gap In Your Disaster Insurance

You should try to get the amount of sleep required for you to wake up without an alarm.

CNN: Fuzzy brain? Improve your attention span

If looking at a 10-K (an annual report required by the SEC) or analyzing a cash-flow statement puts you to sleep, then you should consider using index funds instead.

WSJ: The Experts: What Is the Best Way to Invest on Your Own?