下列对加点的实词解释不正确的一项是（3分）

I’m going to Hainan for vacation this Spring Festival.— Great! ___________ happy thing it is to stay in Hainan in such cold weather!

The US is a large country ________ many different dialects are spoken.

Why was it so noisy over there? — The Twins were surrounded by their fans ____ they stepped out of the hall

_ it goes on, hour ________hour