yawnyawnD.J.:[jɔ:n]K.K.:[jɔn]vi.1.■打呵欠He yawned and fell asleep.他打着呵欠睡着了。He yawned heavily.他打了个大呵欠。She yawned during the lecture.她听讲座时一直在打呵欠。2.■张开, 裂开A great gap yawned between the rocks.在岩石间有个大裂缝。n.1.■呵欠His yawns suggested he was either tired or bored.他呵欠连天说明他不是疲倦, 就是厌倦。2.■乏味或枯燥的事物The meeting was one big yawn from start to finish.那会议自始至终十分无聊。