" The stock market declined today." That means the stock market went down, the general prices were reduced, they decreased.

“The stock market delined today. ” 意思是股市下跌，一般价格下跌， 下跌。

One thing is to look at what happened in 2011 and back then, the stock market declined quite a lot with the downgrade that big, and the impact on the Treasury market hasn't either.

有一件事是看看2011年发生的事情，当时股市下跌了很多，降级幅度很大，对国债市场的影响也没有。