a yawn [ S ] informal something or someone that is very boring 乏味的事物（或人）

Etymology The English yawn continues a number of Middle English forms: yanen from Old English ġānian, and yenen, yonen from Old English frequentatives ġinian, ġionian, from a Germanic root *gīn-.

Verb 1. utter a yawn, as from lack of oxygen or when one is tired; "The child yawned during the long performance" 2. be wide open; "the deep gaping canyon"

必应词典为您提供yawn的释义，美 [jɔn]，英 [jɔːn]，v. 打哈欠；非常宽；难以逾越； n. 呵欠；无聊的人或事；无趣的想法； 网络释义： 打呵欠；张开；打个哈欠；

Yawn是英语中表示打呵欠或裂开的词汇，兼具动词和名词词性。 作动词时，其含义包括生理性打呵欠动作或物体张开、裂开；作名词时指代具体的呵欠行为或形容乏味的事物。

If you yawn, you open your mouth very wide and breathe in more air than usual, often when you are tired or when you are not interested in something. She yawned, and stretched lazily.

Mar 15, 2024 · When you yawn, a wetting agent known as a surfactant coats the tiny air sacs (alveoli) in your lungs, which helps keep them open.

Dec 6, 2024 · “Yawn”是一个简单却实用的词汇，既能描述日常生活中的动作，也能用于表达情感。 通过掌握其基本用法和比喻用法，我们可以更加灵活地将它融入到自己的口语和写作中。

A two-hour meeting - what a yawn! Frankly, most of these shows are a yawn. So far, the contest has been a total yawn. His latest album is, sadly, a yawn that lacks the verve of his debut.

Jul 3, 2025 · 哈欠 （英语： yawn），又叫 呵欠 、 打喊露 、 放飞蚊，是一种属 条件反射 的 深呼吸 活动，并在日常生活中表达沉闷、渴睡、或舒缓 紧张 情绪，一般动物如 猫 、 狗 也会打呵欠。