最近的数据泄露只是冰山一角——我们怀疑存在更严重的网络安全故障。

The recent data breach is ___the ___tip ___of ___the ___iceberg – we suspect a much larger network security failure.

在这次广泛的腐败丑闻中，已逮捕的少数人仅仅是冰山一角。

The few arrests made are just ___the ___tip ___of ___the ___iceberg in this widespread corruption scandal.

可见的环境破坏只是冰山一角；对生态系统的长期影响要严重得多。

The visible environmental damage is ___the ___tip ___of ___the ___iceberg; the long-term ecosystem effects are far worse.