However, it is only a tip of the iceberg.

然而，这只是假新闻的冰山一角。

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Jumps lists are just a tip of the iceberg, an opening shot in what will probably take them several more iterations to complete.

跳转列表只不过是冰山一角，后续还有更艰难的工作有待完成。

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Unless we're all a lot more careful, the people who have died so far will be just the tip of the iceberg.

除非我们大家都更加小心，否则迄今为止已经死去的人数将只是冰山一角。

《柯林斯英汉双解大词典》

Fareeha told Army chiefs that these boys were just a tip of the iceberg.

CNN: Kidnapped boys 'brainwashed' to die as suicide bombers

In a press release issued Wednesday, Greenberg attorney David Boies reacted to a pair of charges that Spitzer's office dropped from the suit as a likely tip of the iceberg prior to a dismissal of all charges against Greenberg.

FORBES: Greenberg Still Headed To Court

It is thought these cases do not represent a "tip of the iceberg" with far more people being infected with mild or no symptoms, but the infection is still being analysed.

BBC: Health