blur是什么意思？

For most of us, memory is a mess of blurred and faded pictures of our lives.

Scholars warn that Antarctica's political drift could blur the distinction between military and civilian activities long before the continent's treaties come up for renegotiation, especially in parts of Antarctica that are ideal for intercepting ( ' , 拦截) signals from satellites or retasking satellite systems, potentially enhancing global electronic intelligence operations.

That notion is not concrete enough and it blurs two key components of hope,' Doctor Snyder said, 'Having hope means believing you have both the will and the way to accomplish your goals, whatever they may be.