b冰山一角用英语怎译

a tip of iceberg!!

a corner of the iceberg

Until now, the public has had access to only a very small percentage of that total.
迄今为止，公众看到的情报只不过是冰山一角。
The airliner crash is seen as merely the tip of an iceberg.
这次飞机坠落被看作仅仅是冰山一角（只是其中的一个例子）。

冰山: iceberg
Relative explainations:
<floeberg> <glacial berg> <ice berg> <ice mountain> <mountain of ice>

Examples:
1. 冰山的大部分在水面以下.
Most of the iceberg is under the water.
2. 冰山把那船撞出了窟窿.
The ship was holed by an iceberg.
3. 泰坦尼克号出发四天以后，一座巨大的冰山向它漂来。
Four days after the Titanic set out, a very big iceberg floated towards her.

tip of the iceberg