v.打哈欠,非常宽,难以逾越
n.哈欠,乏味的事情,令人厌烦的观点(等)
yawn的第三人称单数和复数

原形：yawn第三人称单数：yawns复数：yawns过去式：yawned过去分词：yawned现在分词：yawning

1. He gave an ostentatious yawn.
他张扬地打了个哈欠。
2. She makes no attempt to stifle a yawn.
她并未试图忍住一个哈欠。
3. He faked a yawn.
他装着打了一个呵欠。
I'm sorry, I can't help yawning, I stayed up late last night watching a movie.
对不起，我忍不住打哈欠，昨晚我熬夜看电影了。
After the long meeting, everyone in the room started yawning uncontrollably.
长时间的会议后，房间里每个人都开始无法控制地打哈欠。
As soon as the teacher began her lecture, I felt a yawn escape my lips.
老师一开始讲课，我就忍不住打了个哈欠。
The baby yawned widely, showing off his tiny teeth.
婴儿大大地打了个哈欠，露出了他小小的牙齿。
She stifled a yawn and reached for her cup of coffee to stay alert.
她克制住一个哈欠，伸手去拿咖啡来保持清醒。
In the middle of the night, I woke up with a huge yawn.
半夜醒来时，我打了个大大的哈欠。
He tried to hide his yawn behind his hand during the tedious presentation.
他在枯燥的报告中试图用手遮住自己的哈欠。
Despite being excited about the trip, I found myself yawning at the airport terminal.
尽管对旅行感到兴奋，但我在机场候机室还是忍不住打哈欠。
The puppy yawned adorably while stretching after its nap.
小狗在午睡后伸懒腰时，可爱地打了个哈欠。
He let out a big yawn, signaling it was time for bed.
他打了个大大的哈欠，表示该睡觉了。