索引词：yawn
例文：[例13] The yawning gap between the rich and the poor cannot be ignored. 不能对贫富悬殊的现象熟视无睹。 在口语中，a yawn指乏味的人或事物。 [例14] Despite publicity stunts, the film was a big yawn. 就算用了不少宣传噱头，这部电影还是很乏味。