stone-cold sober

例句：

1. 1. She was stone-cold sober when she woke up this morning.
   她今天早上醒来时完全清醒。
2. 2. He was extremely sober after drinking too much last night.
   他昨晚喝得太多后，现在极度清醒。
3. 3. The driver was absolutely sober before the accident.
   事故发生前，司机完全清醒。