1. dog-tired

1. 像狗一样的累：dog sleep 不时惊醒的睡眠 | dog-tired 像狗一样的累 | dog watch 夜班

2. 累极了;疲惫之至：30. lead a dog's life.过者悲惨的生活. | 31. dog-tired.累极了;疲惫之至. | 32. donkey-work 沉重的苦活儿;呆板的例行工作.

3. 特别累：do without 没有......也行 | dog tired 特别累 | don't bother 别麻烦

4. 非常疲劳. 皆因打猎时,狗总是东奔西跑,不辞辛苦,必然疲惫不堪：every dog has his day. 狗有得意日,人有得意时. | dog tired 非常疲劳. 皆因打猎时,狗总是东奔西跑,不辞辛苦,必然疲惫不堪. | give a dog an ill name and hang him. 欲加之罪,何患无词.

1. 极度疲乏的;累极了的
    If you say that you are dog-tired, you are emphasizing that you are extremely tired.

    e.g. By dusk we were dog-tired and heading for home.
           到了傍晚我们累趴下了，于是回家。

1. drained of energy or effectiveness
    extremely tired
    completely exhausted

    e.g. the day''s shopping left her exhausted
           he went to bed dog-tired
           was fagged and sweaty
           the trembling of his played out limbs
           felt completely washed-out
           only worn-out horses and cattle
           you look worn out

    Synonym: exhaustedfaggedfatiguedplayed outspentwashed-outworn-out(a)worn out(p)