yawningly

例句：

1. 1.She yawned loudly as she fell asleep.
   她打哈欠时睡着了。
2. 2.He yawned widely, feeling sleepy.
   他打了个大大的哈欠，感觉困了。
3. 3.The movie was so boring that I yawned throughout the entire play.
   这部电影太无聊了，我在整场演出中都在打哈欠。