ADJ
不断移动的;流动的
Shifting is used to describe something which is made up of parts that are continuously moving and changing position in relation to other parts.
例句
...the shifting sand beneath their feet...
他们脚下的流沙
The Croatian town of Ilok is a classic case of shifting populations.
伊洛卡的克罗地亚小镇就是人口不停流动的典型例子。