1.to usher the wolf into the house
2.to bring in a troublemaker
3.to set a fox to keep one's geese
狼吞虎咽
to eat like wolves and tigers; to devour like a wolf; to wolf ... down; to bolt; to devour; to gorge on; to gulp
馬馬虎虎
1.to palter with something
2.careless; casual
3.just passable; not so bad, not so good; just so-so
遍體鱗傷
1.to be black and blue all over; to be lacerated and bruised all over; to have serious wounds in every part of one's body
2.The whole body is covered with wounds.
這是百度詞典裏的，僅供參考