yawn(动词/名词):打哈欠;常因困倦、无聊或缺氧而不自觉地张大嘴吸气。有时也可引申指“(裂缝、洞口等)张开/豁开”。(本词也有少量其他用法。)
/jɔːn/
I yawned because I stayed up too late.
我打了个哈欠,因为我熬夜太晚了。
As the lecture dragged on, he tried to hide a yawn, but his boredom was obvious.
讲座越讲越久,他努力憋住一个哈欠,但他的无聊还是很明显。
yawn来自古英语 geonian / ganian,意思与“张口、打哈欠”相关;词形在中古英语时期逐渐演变为今天的 yawn,核心意象一直是“嘴巴张开、吸气”的动作。