路怒症的兴起是一个相对较新的现象。

The rise of road rage is a relatively recent ___phenomenon.

科学家们正在研究各种自然现象，比如风暴和闪电。

Scientists are studying various natural ___phenomena like storms and lightning.

在一些沿海城镇，“醉酒旅游”作为一种意想不到的现象出现了。

In some coastal towns, 'drunkenness tourism' has emerged as an unexpected ___phenomenon.