But most of these so-called megafauna disappeared once humans hit the scene.

但人类抵达后，这些巨型动物就消失了。

When it first hit the scene in the late 60s, Gap was speaking to a generation of young people.

当Gap在60年代末首次出现时，Gap在与一代年轻人对话。

Roman Mars: So these mass-produced metal plates, they hit the scene and that's when license plates, as we talked about in the story, basically become billboards.

Roman Mars：所以这些大量生产的金属板，它们出现在现场，就像我们在故事中谈到的那样，车牌基本上变成了广告牌。

The Rent Stabilization Act hit the scene in 1969 to help keep at least some portion of New York's housing stock affordable; its more well-known parts regulate how much landlords can raise rents in certain apartments.

《租金稳定法案》于 1969 年出台，旨在帮助纽约至少部分住房保持可负担的价格；该法案最为人熟知的部分规定了房东对特定公寓租金的涨幅。