| 词组 | O-sign |
| 释义 | O-sign noun the open mouth of a very sick hospital patient US, 1980 Medical wit; an especially humorous image when the “O-sign” becomes the Q-SIGN (as above but with the tongue hanging out).
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英语词组固定搭配大全包含4241条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。