Jeff is fast asleep; he's having a little rest.

He was too tired, so he fell fast asleep.

他太累了，很快就入睡了。

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He was fast asleep with his mouth open.

他张着嘴，睡得很酣。

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She fell fast asleep in just five minutes.

她不到五分钟就睡得很香了。

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He is fast asleep on the back seat!

他在汽车后座上睡得正香呢！

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As soon as he went to bed, he fell fast asleep.

他一上床就进入了梦乡。

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Within a few minutes she was fast asleep.

几分钟后她就睡实了。

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I was fast asleep when suddenly my bed began shaking.

我很快就睡着了，这时我的床开始摇晃起来。

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When everybody's fast asleep, I start to creep.

当夜晚来时，我开始爬。

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Tired as he was, he was quickly fast asleep.

虽然很累，他还是很快睡着了。

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She lay on the dog's back fast asleep.

公主躺在狗背上睡得很熟。

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He was fast asleep with his mouth wide open.

他睡得很熟，嘴巴大大地张开着。

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The third bed was just right, so she fell fast asleep.

第三个床正好，她很快就睡着了。

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As soon as I live down, I became fast asleep.

我一躺下来就迅速睡着了。

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I was too tired and fell fast asleep last night.

昨晚我太累了，很快便进入了梦乡。

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The children were fast asleep when they got home.

当他们回家时，孩子在熟睡。

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Turning it off could reduce our energy consumption while most of us are fast asleep.

在我们大多数人熟睡时，关掉这类照明设备可以减少能源消耗。

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They were both fast asleep in their cots

他们俩在婴儿床上酣睡着。

柯林斯高阶英汉双解学习词典

I waited until they were all fast asleep.

我一直等到他们都进入了梦乡。

《牛津高阶英汉双解词典》

On the bed lay Peter fast asleep.

床上躺着熟睡的彼得。

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The boss finally found him fast asleep.

最后，老板找到了熟睡的他。

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