One evening there was a great crash, and the officers ran out to see what had happened.

一天晚上，有一声猛烈的撞击声，高级船员们都跑出去看发生了什么。

So, now, let's get back to The Great Crash Course Physics Ramp Race.

所以，现在让我们回到下坡比赛 伟大的速成课程物理。

The last time we saw this is back in 2007, essentially a few months right before the great housing market crash that occurred.

上次我们看到这种情况是在2007年，基本上是在房地产市场大崩盘发生前的几个月。

Thor let out a great crash of thunder as if to underline this point.

雷神发出一声雷鸣般的巨响，似乎是为了强调这一点。

There was a great crash, and Daniel and all the sailors fell to the deck.

发生了一场巨大的坠机事故， 丹尼尔和所有水手都倒在了甲板上。

In the distance Tyrion heard another great crash. Above the walls, the darkening sky was awash with sheets of green and orange light. How long could the gate hold?

远处又传来一声巨大的撞击。城墙上方，黑暗的天空泛着翡翠和橙色的光晕。城门能坚持多久？

And what's known as Black Thursday occurred in the US stock market on October 24th, 1929. It marked the beginning of the great crash of that year.

1929年10月24日，美国股市发生了所谓的“黑色星期四”，标志着当年股市大崩盘的开始。

The year is 1938, and the Western financial system was still recovering from one of the greatest crashes in history, and a second world war was about to break out.

那是 1938 年，西方金融体系仍在从历史上最大的崩溃之一中恢复，第二次世界大战即将爆发。