spring为什么浊化

因为两个清辅音连在一起，后面一个要读浊辅音。

Spring came late this year.

今年春天来得晚。

He was born in the spring of 1944.

他生于1944年春。

Trade usually picks up in the spring.

贸易一般在春天回升。

I love Rome， especially in the spring.

我喜爱罗马，尤其是春天的罗马。

Spring is here and romance is in the air.

春天来了，到处洋溢着爱情的气息。