yawn
/jɔ:n; jɔn/ v[I]
1 take (usu involuntarily) a deep breath with the mouth wide open, as when sleepy or bored 打哈欠.
2 (of large holes, etc) be wide open （指大洞穴等）张开, 裂开
The deep crevasse yawned at their feet. 他们脚下的冰川有一道深深的裂缝.
a yawning chasm 地上裂开的大坑
(fig 比喻) a yawning gap between the rich and poor in our society 我们社会中贫富之间的鸿沟. yawn, n
1 act of yawning (yawn v 1) 哈欠.
2 (usu sing 通常作单数) (infml derog 口, 贬) uninteresting or boring thing 乏味的或枯燥的事物
The meeting was one big yawn from start to finish. 那会议自始至终十分无聊.