看到这些图后，我很担心现在同学们的精神状态。
许多学校最近兴起了养“狗”热潮。但这些狗不是真正的狗，而是用纸箱或者其他匪夷所思的材料制成的“纸板狗”。
它们或蹲伏在宿舍门口默不作声，
或跟着主人徜徉校园，
或违规聚集开汪汪队大会……
它们以风卷残云之势霸占了校园。
中文里有许多关于狗的成语，比如狗拿耗子、狐朋狗友、狗尾续貂、蝇营狗苟、狗急跳墙、狗眼看人……好像没几句好话。
可是英语中的dog有时候却能用来夸人，比如：
a lucky dog
幸运儿
例句：
I'm a lucky dog and I love my country.
我是个幸运儿，我爱我的国家。
John is a lucky dog, he just won 100 dollars on a bet.
约翰真是个幸运儿，他与人打赌刚赢了100元。
top dog
a person who has achieved a position of authority
n.（尤指经过斗争后）最有权的人
例句：
Reynolds has never concealed his ambition to be the top dog.
雷纳尔德从不掩饰他要成为领军人物的雄心。
The West's long run as top dog may be ending.
西方国家长久以来作为世界领头军的格局或许结束了。
sea dog
an old sailor with many years of experience at sea
n.老练的水手
例句：
With his white beard and blue cap he looked like an old sea dog.
他留着白胡子，戴着蓝帽子，看上去像个老水手。
gay dog
快活的人
gay 原本的意思是“快乐的”，“gay dog”表示“快活的人；寻欢作乐者”。
例句：
One likes to be alone, but the other is a bit of a gay dog.
他俩一个喜欢独处，另一个却喜欢热闹。
也能用来损人，比如：
lazy dog
懒汉，懒家伙
例句：
He is a lazy dog. He never tidies his bedroom.
他是个懒汉。他从来不收拾卧室。
I like this attitude of life, for I am a lazy dog, I always use "treat one lift one day" to remind myself.
我欣赏这种生活态度，因为我是个懒汉，时不时用“一生当成一天”来提醒自己。
dirty dog
卑鄙小人
例句：
Dirty dog always ungrateful, ungrateful originally part of the base.
卑鄙小人总是忘恩负义的，忘恩负义原本卑鄙的一部分。
That dirty dog tried to cheat me!
那个寡廉鲜耻的家伙企图欺骗我！
a dog in the manger
manger / ˈmeɪndʒə(r) / n.（马、牛）食槽
someone who keeps something that they do not want in order to prevent someone else from getting it
n.占着茅坑不拉屎的人
例句：
No child wants to play with a dog in the manger.
没有哪个孩子想和占着茅坑不拉屎的人一起玩。
I'd like to ask you to consider it again and not to be a dog in the manger.
我劝你还是再考虑考虑，不要做占着茅坑不拉屎的人。
还能用来表示情绪：
the black dog
抑郁
a way of referring to feelings of depression
一种表达沮丧情绪的方式(=极度悲伤和缺乏精力)
用来形容人或物的状态：
dog's breakfast
something or someone that looks extremely untidy, or something that is very badly done
乱七八糟；一团糟
例句：
He's made a real dog's breakfast of these accounts.
他把这些账目简直搞得一塌糊涂。
Our own Board are going to make a dog's breakfast out of it if we aren't careful.
如果我们不小心行事，我们的董事会就会乱成一团。
sick as a dog
病得十分严重
例句：
Since I came here, I have been sick as a dog.
我来到这儿以后，就一直病得很厉害。
Yesterday I was sick as a dog with the flu. I stayed in bed all day.
昨天因为感冒我病得十分严重，整天都在床上躺着。
die like a dog
悲惨地死去
例句：
He is keep in prison for week without food and die like a dog.
他被囚禁了几星期，没有食物果腹，最后悲惨地死去。
a dog's life
a very unhappy and unpleasant life
悲惨的生活
例句：
In the old days, many families led a dog's life.
从前，许多家庭过着牛马不如的生活。
He's been leading a dog's life since his father's death.
从他爸爸死后他一直过得不好。
更多关于dog的表达
rain cats and dogs
to rain very heavily
下倾盆大雨
例句：
We were about to get home, when it began to rain cats and dogs.
我们快要到家了，这时候下起了倾盆大雨。
It started to rain cats and dogs when I was about to leave the office.
我正要离开办公室的时候，外面下起倾盆大雨。
Every dog has its day.
said to emphasize that everyone is successful or happy at some time in their life
凡人皆有出头日
例句：
Don't forget, every dog has its day. 1'rn quite sure chat he'll be successful.
别忘了，人人都有走运的时候，我确信他会成功的。
let sleeping dogs lie
said to warn someone that they should not talk about a bad situation that most people have forgotten about
莫惹是非
例句：
I really think you should just let sleeping dogs lie.
我真的觉得你不该没事找事。
To calm the present situation, you may let sleeping dogs lie.
为了缓和目前的情况，你别招惹麻烦。
Love me, love my dog.
said to warn someone that if they want to be in a relationship with you, they must be willing to accept everything about you
爱屋及乌
例句：
There is an old proverb, "love me, love my dog." But there is more wisdom in this: "love me, love my book."
有句谚语说道：“爱屋及屋”，其实“爱我及书”这句话蕴含更多的哲理。
有狗了，已经不想和没狗的人说话了。
