be fast asleep

常见例句

You can't think, see, and seize it, as if your body were vacated, nothing in it. All is so tranquil seems to be fast asleep.
想不能想，看不能见，捉不及物，身体好像不再有感觉，形同虚设，一切都是那么平静，似乎要睡着了。
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When the first streak of sunlight reaches the depth of several grottoes, the others may continue to be fast asleep and even remain in dark all day long.
每天清晨第一缕阳光照进几座洞窟深处时，另外的洞窟却可能继续沉睡不醒，甚至终日处于黑暗之中。
http://dj.iciba.com
Quite true, they are always trying to destroy us. I fully admit the soundness of this appraisal, and indeed one would have to be fast asleep to overlook the point.
对的，他们总是在企图破坏我们，我完全承认这种估计的正确，不估计这一点就等于睡觉。

MRS. OBAMA: Before Santa comes to your house you have to be fast asleep, okay?
WHITEHOUSE: The White House