context和background词义的区别

,context中文意思是n. 背景，环境；上下文，语境

background中文意思是n. 出身背景，学历，经历；（事件或情况的）背景；背景声音；（画等的）后景；底色

His decision can only be understood in context.只有了解来龙去脉才能明白他的决定。

In the background was that eternal hum.