1. Some students often doze off in class. 有些学生经常在课堂上打瞌睡。
2. We couldn't help but doze off during his lecture. 他演讲时我们忍不住打瞌睡。
3. I occasionally doze off, only to be awakened by the agonizing pain of another collapsed vein and infiltrating fluids. 我时不时地会打一会瞌睡,但每次都被静脉破裂和输液的液体漏出引起的难忍的痛苦弄醒。
4. Do you sometimes doze off in class? 你上课偶尔会打瞌睡吗?