dog tired extremely tired; utterly worn out. informal
☞ The image here, and in the variant dog weary, is of a dog exhausted after a long chase or hunt.
英语词组固定搭配大全包含15956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。