fast asleep
01
熟睡的, 沉睡的
very deep in sleep and difficult to be woken up
例子
Despite the noise outside, she remains fast asleep, undisturbed by the commotion.
尽管外面有噪音，她仍然熟睡，没有被骚动打扰。
After a long day of work, he fell into bed and was fast asleep within minutes.
经过漫长的一天工作后，他倒在床上，几分钟内就熟睡了。
