4.iceberg 一个冷漠无情，缺乏正常人热情的人
iceberg的原意是：在南北极附近海面上飘动的大冰山。但是，在当做俗语用的时候，iceberg是指一个冷漠无情，缺乏正常人热情的人，就像下面例子里说的这个人。
my boss is the smartest man i know. but he's a real iceberg: he acts like he has no feelings for other people. in fact you can almost feel the chill when he walks into the office.
我的老板是我所认识的人当中最聪敏的一个。但是，他真是个冷漠无情的人。他好像对别人毫无感情。当他走进办公室的时候，你几乎会感到一股冷气。
又如：we thought our neighbor next door was a real iceberg, cold and aloof to us all. but at his daughter's wedding he wore a big smile and was so friendly i couldn't believe he was the same man.
我们都认为隔壁的邻居是个很冷漠的人，对我们都很冷淡。但是，在他女儿的婚礼上，他笑容满面，非常友好。我真是难以相信看到的是同一个人。