1、 He stretched himself with a yawn、他打了个呵欠伸了伸懒腰。
2、 A big gap yawned between the rocks、岩石间豁开一个大裂口。
3、 The play was a big yawn from start to finish、那出戏从头至尾极其乏味。
4、 He yawned out a good night、他打着呵欠道晚安。
5、 He closed the book， yawned， and went to bed、他合起书，打了个呵欠，然后上床睡觉了。