The loudest roar I have ever heard came booming out.

我听到过的最响亮的吼声轰鸣而出。

But while it can be lots of fun nodding our heads to the tunes booming out, it can also harm our hearing.

但是，虽然随着音乐的轰鸣而摇头晃脑会很有趣，但这也会损害我们的听力。

By the time the Cold War was waning and baby boomers were booming out their own babies, it truly felt like we were the greatest country on earth.

到冷战结束、婴儿潮一代开始生育自己的婴儿时，我们真的感觉自己是地球上最伟大的国家。