An iceberg is a huge piece of ice floating in the sea. It broke off from a glacier — a slow river of ice on land — and now drifts in cold water.

An iceberg一座iceberg（冰山）is a huge piece of ice floating in the sea是一大塊漂在海上的冰。It broke off from a glacier它是從冰河斷裂下來的——a slow river of ice on land冰河是陸地上緩慢移動的冰河——and now drifts in cold water現在漂在冷水裡。

Most of an iceberg sits under the water; only a smaller part sticks up where you can see it. Ships have to watch for icebergs because the hidden part can tear a hole in the side of a ship. The Titanic is the famous story.

Most of an iceberg sits under the water冰山的大部分都在水面下，only a smaller part sticks up where you can see it只有比較小的一部分露出來讓你看得到。Ships have to watch for icebergs船隻必須小心冰山，because the hidden part can tear a hole in the side of a ship因為藏在水下的部分可能會把船身撞出一個洞。The Titanic is the famous story鐵達尼號就是那個有名的故事。

People stretch the word. When someone says “that’s just the tip of the iceberg,” they mean you are only seeing a small part of a much bigger problem. That saying is very common, even among people who never see real icebergs.

People stretch the word大家會把這個字延伸使用。When someone says "that's just the tip of the iceberg,"當有人說「that's just the tip of the iceberg」，they mean you are only seeing a small part of a much bigger problem意思是你看到的只是一個更大問題裡的一小部分。That saying is very common這個說法非常常見，even among people who never see real icebergs就算是從沒見過真正冰山的人也會這樣說。

There is also iceberg lettuce: a round, pale, crunchy lettuce named after this ice, because it looks pale and tightly packed. In food talk, “iceberg” often means that lettuce.

There is also iceberg lettuce還有一種iceberg lettuce（美生菜）：a round, pale, crunchy lettuce named after this ice是一種圓圓的、顏色淡、口感脆的萵苣，用這種冰來命名，because it looks pale and tightly packed因為它看起來顏色淡、包得很緊實。In food talk在講食物的時候，"iceberg" often means that lettuce「iceberg」常常就是指那種萵苣。

The ice sense is the older one; the saying is the one you will hear most.

The ice sense is the older one冰的意思是比較早的；the saying is the one you will hear most那句慣用語才是你最常聽到的。