详细解释:正在高涨
例句：
I want you to understand clearly that America doesn't have to be in decline. America can be on the upswing. We can have better jobs and better pay. We can make this country that we want it to be.我们大家清楚了解，美国不是非走下坡不可。美国可心蒸蒸日上。我们可以有更好的工作，更好的待遇。我们想要美国成为什么样的国家，它就会成为什么样的国家。