n.冰山,(事物全貌的)一小部分,冷若冰霜的人
The Titanic met her fate by crashing into a huge iceberg.
泰坦尼克号客轮因撞上一个大冰山而沉没.
But this is only the tip of the iceberg.
然而,这仅仅是一种表面现象.
The above complaints are, I suspect, just the tip of the iceberg.
我想,以上的抱怨只是冰山一角。